UMI’s Ultimate rear upper trailing arms for the Ford Mustang feature on-car adjustability combined with race quality rod ends. These adjustable arms can be used to tune pinion angle and lateral location while being strong enough to handle anything you can throw at them. Laser cut mild steel mounting brackets combined with CrMo adjusters work together to make these the ultimate upper control arm. Installation takes about one hour and is bolt in. Crafted with pride in the USA.. P/N 1008: The polyurethane bushing kit replaces the two upper rear end differential bushings located in the “ears” of the rear end. Note: Must reuse the existing outer metal shell.  Installation 2-4 hours.. P/N 3001: New grade 10.9 mounting hardware makes for an easy installation. Kit includes grade 10.9 12mm bolts and Ny-lock nuts.. UMI Performance 79-04 Ford Mustang Adjustable Upper Control Arms - Ultimate Arms. 1017 - 1979-2004 Mustang Adjustable Upper Control Arms "Ultimate Arms". Application: 1979 - 2004 Ford Mustang (Will not fit 1999 - 2004 Cobra). ¼” thick laser cut mounting brackets. 4140 adjuster for ultimate strength. Race quality Teflon lined rod ends. TIG welded 4140 CrMo threaded end. Durable powder coat finish. Easy on-car adjustments. Upper Control Arms. Features:

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