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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
See separate entry for use with OEM style springs
API Service Class GL 5 Plus
UMI Part Number 1008 replaces the upper rear axle differential bushings
This setup delivers enhanced adjustability and performance while maintaining good street manners
V6 Turbo Grand National may require spring trimming due to lower engine weight
UMI Stage 1.5 Kit: Koni shocks, taller ball joints, springs & sway bars. 1998-pontiac-firebird-esi4271216 See separate entry for useIntroducing the UMI Stage 1. 5 Kit: Elevate Your Muscle Car's Performance Unleash the full potential of your muscle car with UMI's Stage 1. 5 Kit, meticulously engineered to transform your driving experience with superior handling and performance enhancements. Building upon the robust foundation of our original Stage 1 kit, this advanced package offers a seamless blend of innovation and precision. Key Features include Koni Rebound Adjustable Shocks:
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