Drivetrain› Differentials and Rear-End Components

Yukon Gear & Axle

OEM Ring and Pinion set for GM 8.5IN and 8.6IN in a 3.08 ratio.

$855.89

SKU: Y001 GM8.5-308

In Stock
In Stock
Ships by Jun 17
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Yukon Gear & Axle GM8.5-308 is a high-performance ring and pinion gear set with a 3.08 ratio, designed for GM 8.5" and 8.6" 10 Bolt differentials. It features a special gear tooth surface finish for reduced friction and heat, and is made from high-grade steel for durability and OEM-spec fitment. This gear set is suitable for various GM cars and trucks from 1970 to 2008, and comes with a 1-year warranty.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandYukon Gear & Axle
Part NumberY001 GM8.5-308

Videos

How To: Rebuild a GM 8.5" Rear Axle 10 Bolt Chevy

How To: Rebuild a GM 8.5" Rear Axle 10 Bolt Chevy
No BS GM 8.5/8.6 10 Bolt Ring and pinion gear install axle setup

No BS GM 8.5/8.6 10 Bolt Ring and pinion gear install axle setup
LSD diff locker Install 8.5"/8.6" GM Axle, Yukon Gear YDGGM8.5-3-30-1

LSD diff locker Install 8.5"/8.6" GM Axle, Yukon Gear YDGGM8.5-3-30-1
How to: Rebuild a GM 8.5in 10 bolt rear differential - Start to finish rear end rebuild in 7 min!

How to: Rebuild a GM 8.5in 10 bolt rear differential - Start to finish rear end rebuild in 7 min!
How-To: Build a GM 8.5 10 Bolt Rear End | Parts & Tools Overview

How-To: Build a GM 8.5 10 Bolt Rear End | Parts & Tools Overview
GM 8.5 10 bolt gear setup and final assembly

GM 8.5 10 bolt gear setup and final assembly
how to re-gear a GM 8.6" 10-bolt axle

how to re-gear a GM 8.6" 10-bolt axle
Full axle rebuild for a GM 10 bolt to handle over 500 horsepower

Full axle rebuild for a GM 10 bolt to handle over 500 horsepower
GM 10 Bolt Rebuild DIY How to

GM 10 Bolt Rebuild DIY How to

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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