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Aluminum 3rd member will NOT work
and provisions for adding sway bars
Harness the power of your Ford Mustang with UMI Performance's adjustable rear upper control arm
Instructions include detailed P/N list
Manley Valve - Exhaust, Valve-S/D 1.880,+.100 1984-pontiac-firebird-esi1382254 Aluminum 3rd member will NOTManley 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
