UMI Performance 362224-R Rear Trailing Arm Kit | Extended Length Upper & Lower Arms

The UMI Performance 362224-R Trailing Arm Kit is a precision-engineered suspension solution designed to correct the factory wheelbase problem found on 1978–1996 GM B-Body vehicles. By extending the trailing arm length by 5/8", this kit properly repositions the rear wheels within the wheel house for improved geometry and stance.

Key Features:

• 100% Made in the USA — designed and manufactured to UMI's exacting quality standards
• Extended-length lower trailing arms reposition the rear axle to correctly center the rear wheels in the wheel house
• Extended-length adjustable roto-joint upper trailing arms allow precise control of pinion angle and lateral axle location while improving suspension articulation
• Compatible with the factory driveshaft — no driveshaft modifications or replacement required
• Designed specifically to address the known factory wheelbase offset issue on GM B-Body platforms (1978–1996)

The UMI 362224-R trailing arm kit pairs extended lower arms with rod-end adjustable uppers, giving you the ability to fine-tune your rear suspension setup for both street and performance driving applications. The result is a properly centered rear axle, improved handling balance, and a cleaner wheel-to-wheel-house fitment — all while retaining your factory driveshaft.