Eaton 912A686 Detroit Truetrac Limited Slip for 2010-2015 Chevrolet Camaro SS/LS

Vehicle Fitment

• 2010-2015 Chevrolet Camaro (RWD, LS / LT / SS / ZL1 / Z/28, Rear 8.6-inch axle, 32-spline shaft)

Fitment Notes

• Fits only rear GM 8.6-inch (AAM 218 mm) differential housings with **32-spline** axle shafts. 
• Only compatible with ring/pinion gear ratios of **3.45** and **3.73**. Vehicles with other ratios require different differential. 
• Verify your Camaro's trim, axle type, and spline count before purchase. Some special edition or non-stock axles might differ.
• Fitment through 2015 confirmed. No Eaton spec listing beyond 2015 for this part. If considering later model years, fitment is unconfirmed.

Features

• Helical-gear limited slip design (Detroit Truetrac) - automatic torque biasing without clutches or bands. 
• Smooth, quiet operation in forward and reverse - reduces chatter common to clutch-type LSDs. 
• High strength with 32 spline shafts to handle power and torque in performance Camaros. 
• Only takes standard maintenance - no special friction modifiers required. 
• Steel carrier materials for durability under track, street, and occasional off-road conditions.
• Optimized for popular gear ratios (3.45 & 3.73) used in 5th Generation Camaro rear differentials.
• Weight around **28.26 lb** - solid but manageable for rear differential application. 
• OEM-grade reliability; Eaton/DDET Detroit Truetrac is a known brand for aftermarket and performance integrity. 

Specifications

• Part Number: **912A686** - Detroit Truetrac, Eaton. 
• Ring Gear Size: **8.6 inches** (≈ 218 mm) - GM/AAM rear axle. 
• Spline Count: **32-spline** axle shafts. 
• Supported Gear Ratios: **3.45** and **3.73** listed. 
• Weight: approx **28.26 lb** for the differential assembly. 
• Differential Type: Limited Slip Differential (LSD), helical gear (Truetrac style). 
• Axle Location: Rear. 
• Housing Manufacturer: OEM GM/AAM 218mm (commonly found in 5th Gen Camaro rears).

Included Components

• 1x Eaton Detroit Truetrac differential carrier assembly (carrier with helical internals) - complete unit. 
• Note: Differential cover, gasket/seal, ring/pinion bolts or installation hardware generally **not included** - verify with vendor. 

Product Description

The Eaton Detroit Truetrac 912A686 is a performance rear limited slip differential designed specifically for the fifth-generation Chevrolet Camaro (2010-2015) using GM's 8.6-inch (218 mm) rear axle with 32-spline shafts. It is engineered to provide improved traction and handling through its helical gear internals, engaging automatically under torque without the noise or maintenance demands of clutch-type limited slips. With factory support for the 3.45 and 3.73 ring & pinion gear ratios, it retains OEM drivetrain dynamics while elevating grip during launch, cornering, or under uneven traction conditions.

Fitment is confirmed for Camaros with the correct rear differential geometry and ratio; other vehicles with different axle types or ratios are incompatible. Before purchasing or installing, verify that your vehicle has the 8.6-inch GM/AAM rear, the 32-spline axle shafts, and one of the supported gear ratios (3.45 or 3.73). Installation involves removal of the existing carrier, matching ring-and-pinion setup, setting proper backlash and preload to OEM specifications, using recommended GL-5 gear oil, and checking for clearance. This part is confirmed through 2015 for Camaros; fitment beyond 2015 is unconfirmed.