SPC Control Arms replace your worn or damaged right rear upper control arm on BMW X5 and X6 models. These arms feature a bonded rubber bushing and maintenance free ball joint, matching OE design and performance. Many X5 and X6's are running negative camber because the rear upper arm's bushing and ball joint are worn. Replace it with SPC's Conrol Arm and you can take advantage of the second bushing hole for +2° camber if you need it.