Reply to "Steering Rack Bump Steer Kit"

First I'll address the details. I don't have the specs written down, I let the machinist take the necessary measurements (more accurate that way.)
But, you are welcome to make your own.
But first insure you don't ALREADY have this update. Look under the mounts that attach the rack to the body. The spacer is around 10mm thick, so it is easy to spot.
To get the dimensions you need, just measure the rack mount itself. that will give you everything but thickness, and you can use ~10mm as an estimate for that.
The bolts need to be just 10mm longer, to accomodate the spacer. I strongly suggest you pick bolts where the thread is only as long as necessary, in other words a long plain shank. The right bolts are an odd size (thread length and shank length), and thus I had to order a bag of 100 to keep the cost per unit reasonable.
Don't use stainless bolts as they are more "brittle" at the grade 8 'hardness' rating. IF a bolt breaks off, getting to the captured nut welded to the body is nearly impossible, due to being in a nearly in-accessable location.
(I suggest using some thread goop like "Anti-sieze" brand compound.)
IF the worst happens while driving I'd rather have a BENT bolt, than a BROKEN bolt !

If you like to make your own....go for it.
Personally I don't care.

As to the general topic of "keeping" solutions secret, I understand the point others have made, but I think there is room in the limited parts universe for the occasional cheaper (or better) solution than true Factory parts. All vendors have substituted parts here and there where circumstances dictate.
Hey didn't DeTomaso use a FORD engine instead of his own motors...like the other exotics ?
Anyway....it is about driving our cars.
Chuck Melton