There are multiple trans hard parts that your GMC Sierra 3500 HD may need to keep your engine running smoothly. These automatic transmission components fill a number of functions within the transmission housing. They are constructed from quality materials that can withstand the wear and tear caused by one of the hardest working engine parts.
When your transmission isn't operating correctly, there are noises and vibrations that might be the first noticeable signs. If you are repairing or replacing the broken or malfunctioning elements, you will need to select the part compatible with the GMC Sierra 3500 HD make. By correcting problems when first noticed, you avoid costly repairs.