Review on ACDelco Professional 45K0187 Adjustable Rear Upper Control Arm Assembly: Premium Quality and Precision Engineering for Optimal Suspension Control by Geoffrey Graham

Fits, but big adjustments aren't an under-car nightmare. The keys are 32mm LONG and space is limited. It's easier to remove the wheel, remove the bolt on the outside of the camber arm, tighten the nut now that you have access, PRAY you don't over tighten or over tighten, then reassemble everything, load wheel .and see what your camber angle is. Also the small adjusting bolt holding the final alignment makes it very cheap and will rust quickly. Replace with a stainless steel bolt before installation. Also, remember which side you're looking at the same bolt from, not the nut, so you can remove it if necessary without hitting the post. Remove and lubricate the rod with anti-seize before installing, or you will need to remove and heat or use an impact gun to rust it.