[nickcornilsen]

Now that the front suspension was installed, it was time to begin designing the rear suspension. I decided to start by laying-out the stock control arms, lacking good CAD models.

I bought a slab of granite from a counter top store. Scratch that, I bought three. I blued it up and calibrated it to a certified granit block, found it to be within .005 of flat... the other two were flat at about .020... Just an FYI for those looking fo an inexpensive super-flat surface.



I also digitized the wheel-wells of my car to check wheel fitment.



For a little bit of motivation, I threw a rear-wheel in there after i cut the wheel-wells out.



I decided I needed more accurate data about the geometry of the transmission, so I called up a locale guy who is quite well-known in the pro-touring community to use a CMM arm to measure the parts... we worked something out and I got some very good cad models. So then CAD design commenced: