SPC ADJ Control Arms

Bolt goes in from the top. At least that's how we install them at my shop.

Yes, that's the way it's shown in the pictures of the instruction sheet. The problem is that the lock nut on the underside of the adjustable arm nearest the frame hits the frame when the frame moves up while the wheel is on the ground (basically when the car bounces over a bump). When the nut hits the frame it makes a loud "clank" sound. It's not supposed to hit the frame. I plan on putting the bolt in from the bottom because the head of the bolt is much shorter than the lock nut, this way there will be a little more travel in the arm before the bolt/nut makes contact with the frame letting the arm hit the bump stop before the bolt/nut hits the frame. It's only a problem on the rear of the upper driver's control arm. I wrote about this problem to let others know that the tall lock nut and the portion of the bolt that sticks out of the nut can hit the frame. I post some pics tomorrow.

treblig