UMI polyurethane rear end bushings: stronger, better ride, USA-made. 1999 Pontiac Firebird Allows high-temp operation without varnishing

Allows high-temp operation without varnishing valves and clutches

In Shifter kart racing

30 hrs 350 degree F 5 percent

percent Viscosity Loss

PA shop in the USA

UMI polyurethane rear end bushings: stronger, better ride, USA-made. 1999 Pontiac Firebird Allows high-temp operation without varnishingUMI offers high durometer polyurethane bushings to replace the factory rubber rear end housing bushings. These bushings are designed to improve ride quality and performance by replacing the worn out and hardened factory bushings. The kit includes two bushings and two washers to prevent lateral movement. Made in the USA, these bushings are a great upgrade for both street and track vehicles.