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2000 / 7200 RPM
3000 / 6500 RPM
the most respected name in the header industry since the 60s
443 Lift MTC-1
UMI Performance 1982-2002 GM F-Body Rear Torque Arm Hardware Kit ACC Performance 2000 / 7200 RPMUMIs Grade 8 bolt upgrade kit is recommended when installing an aftermarket torque arm on the factory rear end and all similar rear housings that use the long through bolt design. Supplied with the kit are longer 9 16" Grade 8 bolts which accommodate the thicker torque arm mounting plates. Factory bolts will work with aftermarket torque arms however they may not have adequate amount of threads which could lead to failure and be unsafe. Note: This kit
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