Drivetrain› Differentials and Rear-End Components

Motive Gear

402 = DETROIT LOCKER/TRUETRAC

$1,630.34

SKU: M01Z 187SL47A

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Ships by Jun 9
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Description

The Motive Gear 187SL47A is an Eaton Detroit Locker differential designed for AMC Model 20 Rear Axles. It features a 29-spline count and is compatible with gear ratios of 3.08 and numerically higher. This high-performance locker provides 100% power to both drive wheels, enhancing traction in demanding off-road conditions. It replaces the stock open differential and is ideal for Jeep CJ enthusiasts seeking improved off-road capability.

Fitment

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Specifications

BrandMotive Gear
Part NumberM01Z 187SL47A

Videos

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Motive Gear Ring & Pinion Install
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Mustang Gear Install: Ford Racing 8.8 Ring & Pinion | 1986-2009
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Assembling a POWERTRAX No-Slip LOCKER - AMC20 Locker Installation Part 2 of 3

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AMC 20 Re-Gear and Pinion Install | Rebuild Part 3 | Jeep CJ7 | Project Rowdy Ep 043

AMC 20 Re-Gear and Pinion Install | Rebuild Part 3 | Jeep CJ7 | Project Rowdy Ep 043
How to Change Gears and Bearings on a Rear End Or Differential AMC 20

How to Change Gears and Bearings on a Rear End Or Differential AMC 20
AMC 20 Eaton TrueTrac Install and Gear Setup | Rebuild Part 4 | Jeep CJ7 | Project Rowdy Ep044

AMC 20 Eaton TrueTrac Install and Gear Setup | Rebuild Part 4 | Jeep CJ7 | Project Rowdy Ep044

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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