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Use on trucks that have the UMI rear flip kit installed
The lower A-arms also feature greasable heavy-duty ball joints
dash rattles and quarter panel flexing
Superior consistency and wear protection for Bracket and Heads-Up drag racing transmissions like Power glide and Turbo 400
Camber is easily adjustable at the track with simple (metric) hand tools
Manley Valve - Exhaust, Valve-S/D 1.625,+.600 1989-pontiac-firebird-esi6878223 Use on trucks that haveManley Severe Duty Valves deliver the ultimate in strength, reliability, and high performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH 428 for exhaust and NK 844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400F, Manley exhaust valves endured 100 million cycles, while competitors failed after just
