Who's got a C4???

The trans mount on the C4 is about 3-4in forward from the stock crossmember mount. I used a 3/8" steel plate to bolt the tranny to the cross member instead of relocating the cross member. I had to get a 5/8" driveshaft spacer as well.
I have a B&M Pro Stick shifter, I removed my center console and installed new carpet and made plates to cover up the holes. You can drive on the highway, but you'll be turning some rpms since a C4 tranny does not have overdrive.

Troy