Allstar Performance Differential Shim Kit - 8.875 in - Truck - GM 12-Bolt 35453BK They also have 3 trap

They also have 3 trap doors and a crank scraper

Strengthens Rear Housing Case

and 68cc exhaust ports

Each liner is injection molded to keep it's shape in all temperatures and is perfectly contoured to your vehicle's floor for precise secure fitment (floor hook attachment where applicable)

Performer Olds 455

Allstar Performance Differential Shim Kit - 8.875 in - Truck - GM 12-Bolt 35453BK They also have 3 trapAllstar ring and pinion installation kits are available with or without bearings. Kits contain all the hard to find indi vidual parts for a quick, trouble free installation. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and