This is a Set of GN1Performance "ADJUSTABLE REAR UPPER AND LOWER CONTROL ARMS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6 G-Body Car. These control arm include all the hardware as pictured. Constructed out of high quality aircraft billet aluminum and are Direct replacements for the cheap stock thin metal arms! These increase your cars stability greatly, not mention look amazing!
*These after market control arms are factory replacement. They come with larger than factory bolts for added strength and durability. Some modifications maybe be needed to allow the after market grade 8 bolt to fit properly. If you wish not to make modifications then you may also use the preexisting factory bolts.