01+ GM, 03+ Dodge 11.5in. AAM ATS Protector Rear Differential Cover - 4029156248

ATS Protector Rear Differential Cover Kit- 14-Bolt, 11.5" Ring Gear American Axle Fits: *GM 2001+ 2500HD & 3500 w/ Full Floating Axle (All Duramax & 8.1L Equipped Trucks) *Dodge 2003 2500 High Output Diesels; 2003 3500 Standard & High Output; 2004-2008 2500 & 3500, Standard & High Output Diesels Protector Differential Covers Features and Benefits: •2.5 quart fluid capacity over stock •Optimal gear lubrication •Easy fluid service without removing cover •Aluminum pan with powder-coated finish •Built-in heat sink for cooler oil •Everything you need for easy installation