On my 124 chasis, there are no stock rear camber adjustments. I had to fabricate them myself, then slot the hole they go into in order for the control arms to adjust. I took a flat washer and drilled a hole at one end. Then I inserted the stock bolt in the new hole and welded it in place. This created an offset washer on the head of the bolt, like a cam. Now, when you turn the bolt, it pulls the control arm in or out. It's a little more involved than that, but thats just a short version. If you are realllllly interested I'll send you step by step instructions.