Originally posted by techinspector1
It sounds to me like you have taken Corvette pieces and adapted them to your Olds frame without having a well-thought-out plan. If you have the control arms attached and are just now beginning to think about the rack, I know that you haven't done any planning and that you know little or nothing about independent front suspension and steering geometry.

I have no answers for you and I doubt that anyone else on this board will either. You need to do some heavy reading and educate yourself before going any further. Otherwise, I can see your Olds sitting out front a few weeks from now with a For Sale sign on it because you can't get the bumpsteer and evil transient handling response out of it.

The best way to do what you're trying to do would be to graft the entire front clip from the Vette onto the Olds frame. You would use the Vette steering rack and everything would be correct in relation to everything else.
I appreciate your concern, and can understand why you may think I haven't done any planning. But I can assure you I have.
I'll even scare you a little more. I only used the upper vette A-arms on the olds frame, with some fabricated brackets. And kept the stock olds lower A-arms, boxed them, and added a bracket to the arm to utilize the stock vette lower ball joint. Actually the geometry is correct, the way I fabricated it.
Grafting an entire vette front clip onto the original frame, would of made my wheel width way undersize, plus I would of had to keep the crappy vette C3 stearing system. Which I didn't want.
Now, as far as the measurements for the rack & pinions. This is the whole reason I'm asking for these measurements, so I can get the geometry correct. If no one can help me out, I guess I'll do some bone yard searches with a tape measure . But figured I'd give it a try here first.
As far as putting the car up for sale. I've never not finished a project I've started, and until it's correct, so that won't be happenin.