Eaton K-GM8.6-10IRS Master Differential Install Kit for 2010-2015 Camaro GM 8.6

Vehicle Fitment

• 2010-2015 Chevrolet Camaro (All Trims - LS, LT, SS, 2SS, ZL1, Convertible, IRS Rear Differential, RWD)

Fitment Notes

• Designed exclusively for the GM 8.6 in. (218mm) Independent Rear Suspension (IRS) differential - not compatible with solid-axle GM 8.6 in. 10-bolt applications
• Intended for use with Eaton differential unit 912A686 - reference Eaton's application guide to confirm fitment before installation
• Axle Bearings (axle shaft bearings) are NOT included in this kit - purchase separately if required
• 32-spline axle and pinion application only - confirm your axle spline count before ordering
• Standard rotation only

Features

• Complete master installation kit - includes every component needed to properly install an Eaton differential or replace ring and pinion gears in the GM 8.6 in. IRS, all in one box
• Premium-grade bearings ensure quiet, long-lasting operation under both street and performance driving conditions
• Includes pinion shims and carrier shims for precise gear mesh and backlash setup without sourcing components separately
• Pinion crush sleeve included for proper preload setting during installation
• Axle seals, pinion seal, and cover gasket included to ensure a leak-free assembly
• 10 ring gear bolts and 10 cover bolts included - all hardware needed for a complete, ready-to-torque installation
• Eliminates the need to source individual components from multiple suppliers, reducing installation time and parts cost
• Engineered and backed by Eaton, a global leader in drivetrain performance products with decades of differential technology expertise

Specifications

• Part Number: K-GM8.6-10IRS
• UPC: 840379361308
• Differential Type: GM 8.6 in. IRS / 218mm AAM
• Position: Rear
• Cover Bolts: 10
• Ring Gear Bolts: 10
• Axle Shaft Spline Count: 32
• Pinion Spline Count: 32
• Ring Gear Rotation: Standard
• Compatible Eaton Differential: 912A686
• Cover Gasket: Included
• Pinion Shims: Included
• Carrier Shims: Included
• Crush Sleeve: Included
• Pinion Seal: Included
• Pinion Nut: Included
• Ring Gear Bolts: Included
• Head Bearing (Front Pinion Bearing): Included
• Tail Bearing (Rear Pinion Bearing): Included
• Carrier Bearings: Included
• Axle Seals: Included
• Axle Bearings: NOT Included

Included Components

• 1x Differential Cover Gasket
• 1x Pinion Seal
• 1x Pinion Nut
• 1x Crush Sleeve
• 1x Front Pinion (Head) Bearing and Race
• 1x Rear Pinion (Tail) Bearing and Race
• 2x Carrier Bearings and Races
• 2x Axle Seals
• 1x Pinion Shim Set
• 1x Carrier Shim Set
• 10x Ring Gear Bolts
• 10x Cover Bolts

Product Description

The Eaton K-GM8.6-10IRS is a Master Differential Installation Kit purpose-built for the GM 8.6 inch (218mm) Independent Rear Suspension (IRS) differential found in the 2010-2015 Chevrolet Camaro. Whether you're installing an Eaton performance differential (912A686) or replacing ring and pinion gears, this kit eliminates the guesswork and piecemeal sourcing by bundling every required installation component into a single, organized package. It includes premium carrier bearings, front and rear pinion bearings, carrier and pinion shim sets, crush sleeve, pinion nut, ring gear bolts, cover bolts, cover gasket, pinion seal, and axle seals - covering the complete differential rebuild from start to finish.

This kit is specific to the IRS variant of the GM 8.6 inch axle - featuring a 32-spline axle and pinion configuration - and is not interchangeable with the solid-axle GM 8.6 inch 10-bolt application. Note that axle shaft bearings are not included. Eaton recommends confirming application fitment against their official application guide prior to installation. With Eaton's reputation for precision-engineered drivetrain components, this master kit ensures a smooth, reliable setup for street performance, drag racing, and track-day Camaro builds.