Complete master overhaul kit designed for GM 8.5″ rear differentials
Includes premium Timken carrier and pinion bearings and races
High‑quality seals and full selection of carrier and pinion shims
Ring gear bolts, pinion nut, crush sleeve (where applicable)
Oil baffles, slingers (if applicable) for improved lubrication control
Thread‑locking compound and marking compound with brush for gear setup
Includes factory‑style gasket for leak‑free assembly
Backed by Yukon’s one‑year limited warranty on install kits
Specifications
Fits GM 8.5″ rear axle housing (10‑bolt GM pattern) covering 8.2″, 8.5″ and early 8.6″ applications
Includes standard or aftermarket posi/locker options (Dura‑Grip, Eaton, Detroit TrueTrac, Auburn, others supported)
Pinion spline count: 28 or 30 depending on application
Weight: approx 6.3 lb shipping weight per kit (~inc. hardware)
Made in USA, emission code: Legal US (50‑state street use)
Warranty: 1‑year limited warranty for kit components
Included Components
1x carrier bearings and races (Timken)
1x pinion bearings and races (Timken)
1x pinion seal
1x crush sleeve (if applicable)
1x shim kit (carrier + pinion supershims)
10x ring gear bolts
1x pinion nut
1x gasket
1x marking compound with brush
1x thread‑locking compound
Oil baffles and slingers (if applicable to housing)
Product Description
The Yukon Gear & Axle YK GM8.5 Master Overhaul Kit is a comprehensive differential rebuild solution engineered specifically for GM 8.5″ rear axles with 10‑bolt pattern. Featuring premium Timken bearings and races, precision shims, hardware, seals, and setup compounds, it includes everything needed to fully rebuild your differential to OEM or better standards.
Designed for GM truck and SUV applications from the 1970s through early 2000s—including models across Chevrolet, GMC, Buick, Cadillac, Pontiac, Oldsmobile—the kit supports standard and aftermarket posi or locking carriers. Whether installed by a professional or experienced DIYer, the complete kit simplifies teardown and assembly while ensuring proper preload and backlash adjustment for reliable long‑term operation.
All components are backed by Yukon’s one‑year limited warranty. Installation requires basic differential tools: torque wrench, bearing press/splitter, depth gauge, and dial indicator. Ideal when replacing worn bearings, upgrading to posi/locker setups, or refreshing internal wear items. Verify pinion spline count (28/30) and confirm housing depth before rebuild.
*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.
· · · SHIPPING · · ·
Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
Canada customers - If eBay does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.
· · · RETURNS · · ·
Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.
Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
Any returns received installed, mounted, used or missing components will be subject to return fee's.
· · · PAYMENTS · · ·
We accept all payment methods through eBay's payment system
PayPal, and all major credit cards/debit cards are accepted.
· · · FEEDBACK · · ·
Customer satisfaction is a top priority for us. If you have any issues with your order, please let us know. We will make every effort to resolve any problems and ensure you are satisfied.
· · · CONTACT US · · ·
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