SPL Parts R Upper Arm for 2015-2023 Ford Mustang (SPL RUA S550) 40210 faster response and a more

faster response and a more enjoyable drive

Import companies like TopRank have been helping enthusiasts acquire these dream vehicles for years

ZX6-HDR6 kit features ACT's most popular Heavy Duty pressure plate

and awesomely aggressive sound

SPL Parts R Upper Arm for 2015-2023 Ford Mustang (SPL RUA S550) 40210 faster response and a moreS550 Mustang Rear Upper Arms (RUA) were carefully designed to provide strength, clearance to axle and frame, while allowing for huge range of adjustment. The rear upper arm eliminates the need to adjust from the far inboard side of the arm, which is incredibly hard to reach, and moves all adjustment to the knuckle side, easing alignments. The inner bolt is locked out to a single position, so all adjustments will be done using our double adjustment