Suspension and Components› Suspension Kits

QA1 Precision Products, Inc

REAR SUSPENSION, 68-72 GM X-BODY

$4,465.42

SKU: Q00B R358-170

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This QA1 Suspension Kit (R358-170) is a triangulated 4-link system with MOD Series coilovers designed for '68-'72 GM X-Body vehicles. It replaces leaf springs, offering improved ride quality, enhanced handling performance, and adjustable ride height (+2 to -3 inches) for achieving a desired stance. The kit accommodates wider wheels and tires (up to 11-inch wide wheels and 315mm tires) and requires minimal welding for installation. No modifications to the floor pan are needed. The MOD Series shocks feature 4-way adjustable valving for independent tuning of high and low-speed compression and rebound. It's proudly made in Lakeville, Minnesota, USA. QA1 Subframe Connectors are strongly recommended, and exhaust modification may be required.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandQA1 Precision Products, Inc
Part NumberQ00B R358-170

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.

View Full Return Policy