GM 12 Bolt Differential Crush Sleeve Eliminator Shim Kit Replacement Spacer Pack Precision Machined Steel Spacers For Heavy Duty Truck Rear End Repair And Hardcore Upgrades On Your Ride

GM 12 Bolt Pinion Shim Kit For Heavy Duty Truck Rear Ends
✔️ Multi-size steel shim pack for precise pinion depth adjustments

This kit arrives as a full shim pack for GM twelve bolt differentials. You press these machined steel spacers into the pinion nose during tough truck rebuilds. Stacking the correct combination locks the crown wheel angle and kills that pesky hum dead. The varied thicknesses let you call off the perfect fit before you ever touch the floor jack.

✅ Precision machined steel rings deliver lasting axle strength ✅ Wide thickness spread accommodates custom rear end setups ✅ Direct bolt-on swap removes weak factory crush tubes

💡 Why install crush sleeve elimination shims for heavy duty axle projects?
Rigid steel spacers beat soft factory sleeves that squirm under high torque loads.
- Assorted stack lets you quickly dial in pinpoint pinion geometry on your workbench
- Solid metal blocks lock the preload steady and quit seal blowouts for good
- These handy upgrade kits strip away guesswork and keep ring gear noise down

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