Eaton 913A541 Detroit Truetrac Rear Differential Limited Slip for 95-16 Toyota

Vehicle Fitment

• 1995-2016 Toyota Tacoma (RWD / 4WD, 2.4L I4 / 2.7L I4 / 3.4L V6 / 4.0L V6)
• 2000-2006 Toyota Tundra (RWD / 4WD, 3.4L V6 / 4.7L V8)
• 1993-1998 Toyota T100 (RWD / 4WD, 2.4L I4 / 2.7L I4 / 3.4L V6)
• 2001-2007 Toyota Sequoia (RWD / 4WD, 4.7L V8)

Fitment Notes

• Requires 8.4-inch ring gear rear axle housing.
• Axle must be 30-spline; shaft diameter approx. 1.29-1.31 in.
• Not for vehicles with non-standard ratio outside the 3.54-5.29 range.
• Vehicles from 2017 onward have different axle housings; 2017+ models are excluded.

Features

• Helical gear limited slip differential (LSD) for smooth, quiet torque biasing.
• Automatic engagement - no driver input required.
• Works equally in forward and reverse situations.
• No wearable clutch plates or friction disks; maintenance-free under normal use.
• Steel carrier and internals built for durability and heavy loads.
• Covers an 8.4-inch ring gear size, common in selected Toyota rear ends.
• Compatible with ring gear ratios from **3.54 to 5.29:1**; flexibility for different gearing setups.
• 30 spline axle shafts and ~1.29-inch diameter axles provide strength and fitment compatibility.

Specifications

• Part Number: **913A541** (Detroit Truetrac, Eaton brand) 
• Axle location: Rear differential unit. 
• Ring gear size: ~8.4-inch diameter. 
• Spline count: 30 splines. 
• Axle shaft diameter: approx. 1.29-1.31 in (≈32.8-33.3 mm).
• Ring/pinion gear ratio compatibility: 3.54 up to 5.29:1. 
• Number of cover bolts: 10. 
• Fit confirmed through 2016 for Tacoma, up to 2007 for Sequoia; **2017+ models unconfirmed**

Included Components

• 1x Eaton Detroit Truetrac differential carrier assembly (pre-assembled with helical internals)
• 1x Differential cover gasket or seal (if specified by seller; verify) *- some kits omit gasket*
• 1x Set of ring gear bolts or hardware (often reuse OE bolts; check with supplier) *- verify per vendor* 

Product Description

The Eaton Detroit Truetrac 913A541 is a high-quality, helical-gear limited slip rear differential designed for select Toyota trucks and SUVs using the 8.4-inch rear axle with 30-splines. It replaces open differentials to provide significantly improved traction during acceleration, cornering, or when one wheel loses grip, while operating smoothly and quietly due to its helical design. This means better control in off-road, work, towing or slippery conditions without harsh engagement or need for driver action.

It fits Tacoma models from 1995 to 2016, Tundra 2000-2006, Toyota T100 (early generation), and Sequoia 2001-2007, provided the rear housing matches the 8.4-inch ring gear, 30-spline axle shafts, and has a ratio between 3.54 and 5.29. This part is **confirmed through 2016** for Tacoma and **2007** for Sequoia & Tundra; any model year beyond requires verification of axle configuration. Installation typically requires removal of the rear differential cover, draining the fluid, unbolting the OE carrier, setting the new Truetrac carrier, using the same ring & pinion gear setup, torquing bolts to OE spec, and refilling with the correct oil (volume & type). Be sure to verify compatibility with your vehicle's drivetrain and trim before purchase.