Help set pinion bearing preload during your next rear differential service with the Dorman - HELP Differential Crush Sleeve / Pinion Crush Sleeve, part number 81057. It fits many vehicles, among them the 1999-2013 Chevrolet Silverado 1500, 1988-1999 Chevrolet C1500 and 1988-1999 Chevrolet K1500. See the "Vehicles it fits" section for the full list and engine details.
A crush sleeve is a collapsible spacer that sits on the pinion shaft between the pinion bearings. As the pinion nut is tightened, the sleeve compresses to help hold the bearings at the specified preload. Because it deforms during installation, a used sleeve is generally not reused. Dorman lists this part as a required replacement whenever the differential is serviced. It is listed under two names: differential crush sleeve and pinion crush sleeve.
- Direct replacement: designed to install and work like the original sleeve on the listed applications.
- Required replacement: intended to be replaced when servicing the differential.
- Durable construction: made from quality materials for durability and reliable performance.
- Trustworthy quality: backed by a U.S.-based team of product experts and more than a century of automotive experience.
Signs that the pinion setup may need attention include a whine or growl from the rear differential, or noticeable play at the pinion yoke. Diagnose the cause first. If lost pinion bearing preload is the cause, the pinion is reassembled with a new crush sleeve. Follow the vehicle service information for the correct preload and torque procedure.
Interchange: 1234726 · 12479162
Frequently Asked Questions
What does a differential crush sleeve do?
It is a collapsible spacer on the pinion shaft between the pinion bearings. It compresses as the pinion nut is tightened, which helps hold the bearings at the specified preload.
Can I reuse my old crush sleeve?
Dorman lists this sleeve as a required replacement when servicing the differential. A used sleeve has already been compressed, so it is generally not reused.
Does it fit my 1999-2013 Chevrolet Silverado 1500?
Yes. The 1999-2013 Chevrolet Silverado 1500 is a listed application, as are the 1988-1999 Chevrolet C1500 and 1988-1999 Chevrolet K1500. Check the "Vehicles it fits" section to confirm your exact vehicle.
Which part numbers does Dorman 81057 interchange with?
It cross-references to interchange numbers 1234726 and 12479162.
Any tips for installing a pinion crush sleeve?
The sleeve compresses as the pinion nut is tightened. Tighten the nut gradually and follow the vehicle service information for the correct pinion bearing preload and torque.
