2001-2010 GM Duramax Allison 1000 Rear Adapter Housing, 4WD, LB7 LLY LBZ LMM
Updated housing comes with new C5 apply piston installed. Fixes cracked or broken housings. Updated version with thicker webbing in critical areas. Always be sure to carefully inspect the drive shaft and U joints if you have a damaged extension housing. Driveline vibration is the most common reason of failure on this item.