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Drivetrain› Differentials and Rear-End Components

USA Standard Gear

Differential Pin Kit

Name: Differential Pin Kit
Brand: USA Standard Gear
SKU: SL M35-1.6-27

$721.19

SKU: SL M35-1.6-27

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$100 Minimum Order

Non-Returnable Item

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Overview

It utilizes a spring and pin design for installation and does not require thrust washers. The couplers and drivers are constructed from 9310 steel for durability.

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The USA Standard Gear Spartan Locker is a mechanical "lunchbox" locker engineered to provide reliable, 100% lockup traction at a competitive price point. This locker replaces the spiders within a standard carrier case, featuring a revolutionary spring and pin design that simplifies installation. Its couplers and drivers are forged from robust 9310 steel for enhanced strength and longevity. The Spartan Locker is compatible with AMC Model 35 differentials featuring 27 spline axles and a 1.625-inch (or 1.620-inch) carrier bore. It is backed by a one-year warranty against defects. This locker is specifically designed for Jeep Wrangler models from 1987-2006, including the YJ and TJ generations. While it enhances off-road capability, it's important to note that mechanical lockers like the Spartan Locker can introduce noise during operation, particularly when disengaged on pavement. Proper installation is crucial to ensure optimal performance and longevity.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	USA Standard Gear
Part Number	SL M35-1.6-27
Category	Drivetrain

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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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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