Fits: 2001 thru 2019 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM/LML/L5P

Increase oiling to the C3 clutches on your Allison 1000 transmission with Xcalliber PTO covers.

Features:

• Redirects more oil to C3 clutch pack
• Billet aluminum

Includes:

• 1x Driver side PTO cover
  
• 1x Passenger side PTO cover

Notes:

• Covers require transmission case to be drilled while completely disassembled for oiling hole locations
• Xcalliber JIG is REQUIRED to properly locate oiling hole locations