Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009

ACDelco 89059588 Transfer Case Extension Housing Bushing

ACDelco 89059588 Transfer Case Extension Housing Bushing Image 1
ACDelco 89059588 Transfer Case Extension Housing Bushing Image 2
ACDelco 89059588 Transfer Case Extension Housing Bushing

ACDelco
Brand:ACDelco
Part Number: 89059588
UPC: 00707773178607
Weight: 0.06 lbs
Condition:New



On Sale:

$47.76

Availability:
5 in Stock
Warehouse: US-12
Quantity:

Product Information

Description:

Get the ACDelco 89059588 Transfer Case Extension Housing Bushing for your vehicle. Buy now and secure your purchase online!

GM Genuine Parts Transfer Case Extension Housing Bushings are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Specifications:

Height (in):
2.3 in
Length (in):
2.9 in
Programming Required:
No
Weight (lb):
.06 lb
Width (in):
2.9 in
Country of Origin:
US

Select a vehicle to narrow ACDelco 89059588 Transfer Case Extension Housing Bushing fitment info!

Last Updated: 03/02/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2015 1/2 MODEL YEAR BREAK POINT(AVF),2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2015 1/2 MODEL YEAR BREAK POINT(AVF),2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG),SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG),SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
Mfr Code: 6L90
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
Mfr Code: 6L90
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
Mfr Code: 6L90
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
Mfr Code: 6L90
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Flex OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Flex OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD
 

Chevrolet Silverado 2500 HD



6.0L V8 Bi-Fuel OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
Chevrolet Silverado 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 2500 HD Classic



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 3500



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD
 

Chevrolet Silverado 3500



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 CNG OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 3500



6.0L V8 CNG OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
Chevrolet Silverado 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 3500 Classic



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 3500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

Chevrolet Silverado 3500 HD



6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
Chevrolet Silverado 3500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2015 1/2 MODEL YEAR BREAK POINT(AVF),2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

Chevrolet Silverado 3500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2015 1/2 MODEL YEAR BREAK POINT(AVF),2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
Chevrolet Silverado 3500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 1000
4WD
 

Chevrolet Silverado 3500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 1000
4WD

1 Per Vehicle
Chevrolet Silverado 3500 HD

6.0L V8 Flex OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

Chevrolet Silverado 3500 HD



6.0L V8 Flex OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
Chevrolet Silverado 3500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

Chevrolet Silverado 3500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
Chevrolet Suburban 2500

6.0L V8 Flex OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

Chevrolet Suburban 2500



6.0L V8 Flex OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
Chevrolet Suburban 2500

6.0L V8 Flex OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

Chevrolet Suburban 2500



6.0L V8 Flex OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
Chevrolet Suburban 2500

6.0L V8 Gas OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

Chevrolet Suburban 2500



6.0L V8 Gas OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
Chevrolet Suburban 2500

6.0L V8 Gas OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

Chevrolet Suburban 2500



6.0L V8 Gas OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
Chevrolet Suburban 3500 HD

6.0L V8 Flex OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
 

Chevrolet Suburban 3500 HD



6.0L V8 Flex OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)

1 Per Vehicle
Chevrolet Suburban 3500 HD

6.0L V8 Gas OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
 

Chevrolet Suburban 3500 HD



6.0L V8 Gas OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

GMC Sierra 2500 HD



6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2015 1/2 MODEL YEAR BREAK POINT(AVF),2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2015 1/2 MODEL YEAR BREAK POINT(AVF),2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 1000
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG),SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG),SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
Mfr Code: 6L90
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
Mfr Code: 6L90
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
Mfr Code: 6L90
4WD
 

GMC Sierra 2500 HD



6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
Mfr Code: 6L90
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Flex OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

GMC Sierra 2500 HD



6.0L V8 Flex OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Flex OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

GMC Sierra 2500 HD



6.0L V8 Flex OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD
 

GMC Sierra 2500 HD



6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD
 

GMC Sierra 2500 HD



6.0L V8 Bi-Fuel OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD
 

GMC Sierra 2500 HD



6.0L V8 Bi-Fuel OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
GMC Sierra 2500 HD Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

GMC Sierra 2500 HD Classic



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

GMC Sierra 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

GMC Sierra 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD
 

GMC Sierra 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

GMC Sierra 3500



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 CNG OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD
 

GMC Sierra 3500



6.0L V8 CNG OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 CNG OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD
 

GMC Sierra 3500



6.0L V8 CNG OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD
 

GMC Sierra 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD
 

GMC Sierra 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear 2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: S6-650/ML6
4WD

1 Per Vehicle
GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD
 

GMC Sierra 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1)
Mfr Code: 1000/M74
4WD

1 Per Vehicle
GMC Sierra 3500 Classic

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
1
 
Rear
 
ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD
 

GMC Sierra 3500 Classic



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV

Rear ELECTRIC SHIFT 2 SPEED TRANSFER CASE(NP1),2 SPEED MANUAL SHIFT TRANSFER CASE(NP2)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 3500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

GMC Sierra 3500 HD



6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
GMC Sierra 3500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2015 1/2 MODEL YEAR BREAK POINT(AVF),2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD
 

GMC Sierra 3500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2015 1/2 MODEL YEAR BREAK POINT(AVF),2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 6L90
4WD

1 Per Vehicle
GMC Sierra 3500 HD

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 1000
4WD
 

GMC Sierra 3500 HD



6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
Mfr Code: 1000
4WD

1 Per Vehicle
GMC Sierra 3500 HD

6.0L V8 Flex OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

GMC Sierra 3500 HD



6.0L V8 Flex OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
GMC Sierra 3500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

GMC Sierra 3500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
GMC Yukon XL 2500

6.0L V8 Flex OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

GMC Yukon XL 2500



6.0L V8 Flex OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle
GMC Yukon XL 2500

6.0L V8 Flex OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

GMC Yukon XL 2500



6.0L V8 Flex OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
GMC Yukon XL 2500

6.0L V8 Gas OHV
1
 
Rear
 
SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD
 

GMC Yukon XL 2500



6.0L V8 Gas OHV

Rear SWITCH ACTIVATED 2-SPEED TRANSFER CASE(NQH)
4WD

1 Per Vehicle
GMC Yukon XL 2500

6.0L V8 Gas OHV
1
 
Rear
 
2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD
 

GMC Yukon XL 2500



6.0L V8 Gas OHV

Rear 2-SPD ELEC SHIFT TRANSFER CASE(NQF),2-SPD MAN SHFT ALUM TRANSFER CASE(NQG)
4WD

1 Per Vehicle