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A Precision Spacer for Correct Pinion Bearing Preload
Yukon Gear's crush sleeve for the GM 12 bolt truck differential sets correct pinion bearing preload during a ring and pinion install or differential rebuild. Machined from steel to a precise 2.350 in. length, it collapses a controlled amount as the pinion nut is torqued, establishing the preload needed for long-term gear and bearing life.
Key Features
- Precision steel construction for consistent, repeatable preload
- 2.350 in. length, sized specifically for the GM 12 bolt truck housing
- Essential wear item for any pinion bearing preload or gear set installation
- Direct OEM-style replacement part
Fitment
| Vehicle | Application | Component | Notes |
|---|---|---|---|
| N/A | GM | 12 Bolt Truck Axle | All Applications |
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | YSPCS-022 |
| Length | 2.350 in. |
| Material | Steel |
| Application | GM 12 bolt truck differential |
| Gasket/seal included | No |
| Pinion shims included | No |
What's Included
- 1 crush sleeve
About the Brand
Yukon Gear & Axle has manufactured ring and pinion gear sets, differential components, and axle hardware for trucks, Jeeps, and performance vehicles for decades, widely used in both OEM-replacement and off-road builds.
FAQ
What is a crush sleeve used for?It sets correct pinion bearing preload as it collapses a controlled amount while the pinion nut is torqued during a differential install or rebuild.
What length is this crush sleeve?2.350 in., sized specifically for the GM 12 bolt truck axle housing.
Is this a one-time-use part?Yes, crush sleeves are designed to be replaced any time the pinion nut is loosened or the differential is disassembled.
Does this include pinion shims or a gasket?No, this listing is for the crush sleeve only, shims and gaskets are sold separately if needed.
What differentials does this fit?The GM 12 bolt truck axle, commonly found in classic GM trucks and SUVs of this axle type.
Can I reuse a crush sleeve after removing it?No, once crushed, a crush sleeve should not be reused, always install a new one when reassembling the pinion.
Is professional installation recommended?Yes, setting correct pinion preload requires precise torque and measurement, professional installation or an experienced differential builder is recommended.
What is Yukon Gear's warranty on this part?Contact Yukon Gear & Axle or your retailer for specific warranty terms on this component.
Installation Instructions
- Disassemble the differential per the service manual to access the pinion.
- Remove the old crush sleeve from the pinion shaft.
- Install the new Yukon crush sleeve onto the pinion shaft.
- Reassemble the pinion into the housing and begin torquing the pinion nut incrementally.
- Measure pinion bearing preload with an inch-pound torque wrench as the sleeve crushes.
- Stop torquing once the specified preload value is reached, then complete differential reassembly and gear pattern check.
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