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1978 GMC K15

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Displaying 1 to 10 (of 10 products)
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EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Front
 
2 Leaf
Full Taper
23.50 In. x 23.50 In.
2.75 In. Spring Width
1.4375 In. Pack Thickness
1.125 In. Free Arch
1,200 Lb. Average Capacity
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Front 2 Leaf
Full Taper
23.50 In. x 23.50 In.
2.75 In. Spring Width
1.4375 In. Pack Thickness
1.125 In. Free Arch
1,200 Lb. Average Capacity

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Front
 
3 Leaf
Full Taper
23.50 In. x 23.50 In.
2.75 In. Spring Width
1.4375 In. Pack Thickness
1.125 In. Free Arch
1,400 Lb. Average Capacity
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Front 3 Leaf
Full Taper
23.50 In. x 23.50 In.
2.75 In. Spring Width
1.4375 In. Pack Thickness
1.125 In. Free Arch
1,400 Lb. Average Capacity

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Front
 
4 Leaf
1.9375 In. Pack Thickness
1,900 Lb. Average Capacity
Heavy Duty Aftermarket Design
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Front 4 Leaf
1.9375 In. Pack Thickness
1,900 Lb. Average Capacity
Heavy Duty Aftermarket Design

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Rear
 
5 Leaf /1 Leaf /Two Stage Spring
2.25 In. Pack Thickness
2,350 Lb. Average Capacity
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Rear 5 Leaf /1 Leaf /Two Stage Spring
2.25 In. Pack Thickness
2,350 Lb. Average Capacity

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Rear
 
6 Leaf /1 Leaf /Two Stage Spring
2,775 Lb. Average Capacity
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Rear 6 Leaf /1 Leaf /Two Stage Spring
2,775 Lb. Average Capacity

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Rear
 
5 Leaf /1 Leaf /Two Stage Spring
2.125 In. Pack Thickness
1,875 Lb. Average Capacity
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Rear 5 Leaf /1 Leaf /Two Stage Spring
2.125 In. Pack Thickness
1,875 Lb. Average Capacity

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Rear
 
5 Leaf /1 Leaf /Two Stage Spring
26 In. x 26 In.
2.50 In. Spring Width
2.25 In. Pack Thickness
2,200 Lb. Average Capacity
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Rear 5 Leaf /1 Leaf /Two Stage Spring
26 In. x 26 In.
2.50 In. Spring Width
2.25 In. Pack Thickness
2,200 Lb. Average Capacity

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Rear
 
4 Leaf /1 Leaf /Two Stage Spring
2.0625 In. Pack Thickness
2,150 Lb. Average Capacity
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Rear 4 Leaf /1 Leaf /Two Stage Spring
2.0625 In. Pack Thickness
2,150 Lb. Average Capacity

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Front
 
Raises Front 2.5 (in)
Vehicles with a 2.5 (in) suspension system will require a transfer case lowering kit part number RS6631 .
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Front Raises Front 2.5 (in)
Vehicles with a 2.5 (in) suspension system will require a transfer case lowering kit part number RS6631 .

2 Per Vehicle
Avail:
0 in Stock
 OUT OF STOCK
EnginePer VehiclePositionFit NotesFitment Notes
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
 
2
 
Front
 
Raises Front 4.0 (in)
RS8701 Is Required To Restore the Turning Radius, On Right Turns
Rancho does not recommend installing a 4.0 (in) suspension system on vehicles with a long rear tail shaft housing as rear universal wear will be accelerated and driveline vibration will occur.
Vehicles with a 4.0 (in) suspension system will require a transfer case lowering kit part number RS6631 .
 
1978 GMC K15 equipped with
6.6L V8 Gas OHV,
5.7L V8 Gas OHV,
5.0L V8 Gas OHV,
4.1L L6 Gas OHV
Front Raises Front 4.0 (in)
RS8701 Is Required To Restore the Turning Radius, On Right Turns
Rancho does not recommend installing a 4.0 (in) suspension system on vehicles with a long rear tail shaft housing as rear universal wear will be accelerated and driveline vibration will occur.
Vehicles with a 4.0 (in) suspension system will require a transfer case lowering kit part number RS6631 .

2 Per Vehicle
Displaying 1 to 10 (of 10 products)