Yukon Gear High Performance Gear Set For GM 8.5in & 8.6in in a 3.42 Ratio

SKU: YUKYG_GM8.5-342

Differential Ring and Pinion

YUK Gear Sets - GM...

Yukon Gear & Axle

Yukon Gear High Performance Gear Set For GM 8.5in & 8.6in in a 3.42 Ratio

SKU: YUKYG_GM8.5-342

Differential Ring and Pinion

YUK Gear Sets - GM...

LAST ONE! Est Ship 3-5 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.

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Description

Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacting specifications and quality standards. Yukon offers its Y.E.S. Plan, a lifetime, comprehensive, no-questions-asked protection plan covering your gear set for as long as you own your vehicle. Whether you’ve added tons of horsepower under the hood, upgraded to bigger tires, are just want to optimize the traction performance of your ride, Yukon offers the widest selection of gear ratios on the market to accommodate every need.

Product Overview

Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing processes, backed by 2 in-house quality labs to ensure each item manufactured meets exacting specifications & quality standards. Yukon designed gear tooth surface finish reduces both friction & heat for long races & high torque conditions. We use high grade steel in both the ring & pinion, with fitment designed to OEM specs. Go ahead, add loads of horsepower & go big on tires because Yukon offers the widest selection of gear ratios to choose from. You?ll know that your gear choice was the right one, because you chose Yukon. Yukon Ring & Pinions come with a 1 year warranty against manufacture defects. Yukon offers a Y.E.S. Plan for a lifetime, comprehensive, no-questions-asked protection plan covering your gears for as long as you own the vehicle.

Features and Benefits

Fits GM 8.5 in. And 8.6 in.
3.42 ratio
8.50" ring gear diameter
Fits GM 8.5" and 8.6"
10 ring gear bolts
30 spline pinion
8.50 in. Ring Gear Diameter

Product Details

AAP Selling Package Quantity UOM:	EA
AAP_UDA_12:	EA
AAP_UDA_22:	1
Axle Model:	GM 8.5 & GM 8.6
Axle Type:	Semi Float
California Proposition 65:	Not Applicable
Cover Bolt Quantity:	10
Description:	High performance Yukon Ring/Pinion gear set for GM 8.5in./8.6in. in a 3.42 ratio
Differential:	GM 8.6 Rear, 99-08
Gear Ratio:	3.42
Mounting Hardware Included:	No
Nested Gear Family:	Yes
Part Number:	yukYG GM8.5-342
Pinion Spline Count:	30
Position:	Front or Rear
Ring Gear Bolt Quantity:	10
Ring Gear Outside Diameter:	8.5
Shims Included:	No
Title:	High performance Yukon Ring & Pinion gear set for GM 8.5" & 8.6" in a 3.42 ratio
WARNING CA Proposition 65 Required:	No
WARNING CA Proposition 65:	No

Application Summary

8.5" GM 3.42 R&P ( USE OEM w/abs 4 IMPLA & CAPRICE)(no abs ring)

Part Type

Differential Ring and Pinion

Data: v4.2 - Upd: 2026-10-08 01:34:00

Features

10 ring gear bolts
3.42 ratio
30 spline pinion
8.50 in. Ring Gear Diameter
8.50" ring gear diameter
Fits GM 8.5 in. And 8.6 in.
Fits GM 8.5" and 8.6"

Specifications

AAP Selling Package Quantity UOM:: EA
AAP_UDA_12:: EA
AAP_UDA_22:: 1
Axle Model:: GM 8.5 & GM 8.6
Axle Type:: Semi Float
California Proposition 65:: Not Applicable
Cover Bolt Quantity:: 10
Description:: High performance Yukon Ring/Pinion gear set for GM 8.5in./8.6in. in a 3.42 ratio
Differential:: GM 8.6 Rear, 99-08
Gear Ratio:: 3.42
Mounting Hardware Included:: No
Nested Gear Family:: Yes
Part Number:: yukYG GM8.5-342
Pinion Spline Count:: 30
Position:: Front or Rear
Ring Gear Bolt Quantity:: 10
Ring Gear Outside Diameter:: 8.5
Shims Included:: No
Title:: High performance Yukon Ring & Pinion gear set for GM 8.5" & 8.6" in a 3.42 ratio
WARNING CA Proposition 65 Required:: No
WARNING CA Proposition 65:: No

Reference Information

Brand Name/s	Yukon Gear & Axle
StreetFX SKU	yukYG_GM8.5-342
SFX Item ID	4489382
Supplier Item Code	4489382
Manufacturer SKU	YG GM8.5-342
Manufacturer UPC	883584241577
Alternative References	gm8.5-342, yga-24157, YKNYGGM8.5-342, 8.5in, 8.6in