Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Drivetrain› Differentials and Rear-End Components
Yukon Gear & Axle
REAR AXLE KIT FITS GM 8.6" DIFF 30
SKU: Y001 ZA K630830
Moderate — 2–4 hours
Overview
Show original supplier description
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Yukon Gear & Axle |
| Part Number | Y001 ZA K630830 |
Videos
LSD diff locker Install 8.5"/8.6" GM Axle, Yukon Gear YDGGM8.5-3-30-1
Grizzly Locker and 456 Gears on the Street - Is it Bear-able?
Spider Gear Installation Explained | Differential Tech Tips
Chevrolet Tahoe Rear Bearing Noise Found Replacing pinion differential Bearings GM 8.6 Axle service
2008 Chevy Tahoe - Differential Spider Gear Replacement (Final Video)
Mini Spools: What are they? Will it work for me?
WE INSTALLED A YUKON POSI & 4.11 GEARS ON MY CHEVY SILVERADO!
GM 8.5 10 Bolt Crush Sleeve vs Crush Sleeve Eliminator – What’s the Difference?
how to re-gear a GM 8.6" 10-bolt axle
Which Traction Device is Right for You?
About MOTORMIA
Buy with Confidence
Returns & Fitment
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.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy