Drivetrain› Differentials and Rear-End Components
Yukon Gear & Axle
Yukon Gear Pinion Depth Shims For GM 7.5in / 7.75in / 8.2in & 12 Bolt Truck
SKU: Y001 SK 21104
Moderate — 2–4 hours
Description
Constructed from steel, these shims assist in achieving the correct pinion depth and preload during differential setup. The kit includes two 0.010-inch thick shims, providing the necessary components for proper installation.
Fitment
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Specifications
| Brand | Yukon Gear & Axle |
| Part Number | Y001 SK 21104 |
Videos
How To: Set Pinion Depth, Backlash, and Read Gear Pattern on GM 10 Bolt
Helpful Tools for Differential Repair
How to set ring & pinion backlash
LSD diff locker Install 8.5"/8.6" GM Axle, Yukon Gear YDGGM8.5-3-30-1
Helpfull Tip For Pinion Gear Set Up in Differential
GM 8.5 10 bolt gear setup and final assembly
No BS GM 8.5/8.6 10 Bolt Ring and pinion gear install axle setup
GM 10 Bolt 7.5 Ring and Pinion Setup Rear Axle Using Kent Moore Tools
How To Read A Differential Gear Pattern: A Beginner's Guide. ( Gear Tooth Contact Pattern )
How to Set Ring and Pinion Backlash — Yukon Gear & Axle
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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