1) What does the conversion cross member do rather than slotting the holes in the factory mount? Is it taller? 2) Is it possible to use a late model pedal box/assy in a classic with fab work (allows modern cable with out mustangsteve's' conversion)? 3) What is the difference in the yoke of the T5 and C4? I was talking this over with a couple of buddies who are big into Fox 'Stangs and one of them is a master trans tech for Ford. They have swapped T5's and C4's into late model 'Stangs before. We were discussing what all would need to be done to swap in a 5 speed from a C4 in my car. It was decided that the yoke is possibly the same, the cross member would probably need to be slotted, and a set of fox pedals could be fabed to work under the dash. I have read the moderndriveline.com site too.