Fits: 2001 thru 2007 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ Duramax Diesel

Replaces GM Part# 94011605

Seals can swell when contaminated and not seal well upon reinstall. Swollen seals can be tough to get back in place with out rolling out and ripping.  Don't take a chance, replace the seal if in question.