Chassis Components› Bushings and Mounts

Hardrace

Rear Differential Bushing

$176.16

SKU: HR-8731

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

These aluminum bushings are significantly stiffer than OEM rubber, ensuring that every ounce of power is directly transmitted to the rear wheels. This design minimizes energy absorption by the soft rubber, leading to improved power delivery.
Show original supplier description
The Hardrace Rear Diff Mount Aluminium Solid Bush (HR-8731) is engineered to upgrade the rear differential mounting system for enhanced performance. By replacing the stock bushings, these solid collars ensure that all available power is directly transmitted to the rear wheels, rather than being absorbed by the compliant rubber. This direct power transfer can lead to a more responsive and engaging driving experience. Constructed from durable aluminum, these bushings are built for longevity and performance under demanding conditions. The solid design minimizes flex and deflection in the differential mount, contributing to a more stable and predictable drivetrain. This is particularly beneficial during hard acceleration, cornering, or braking, where traditional rubber bushings can allow for excessive movement. This kit is compatible with the following vehicles: * Lexus SC 1st Gen (Z30) 1991-2000 * Toyota Supra 4th Gen (JZA80) 1993-2002 * Toyota Soarer (Z30)

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

BrandHardrace
Part NumberHR-8731
CategoryChassis Components

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Returns & Fitment

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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