I know this has been done to death, but heres how I did it. The trans is out of an 85 Camaro and for this particular application the shifter is in a real good position so I didnt have to change the tailhousing. The goal was to be able to use all the stock mullet-mobile clutch stuff simplifying replacement by the use of a matched clutch set. #PK0056 from Autozone. We will start with the flywheel. If you look at the pilot bushing, theres 2 of them. We had the outer one machined to fit the flywheel on the outside, and drilled to fit the camaro pilot bushing. Then the flywheel was redrilled to the gm clutch bolt pattern. The Camaro clutch plate has a flat front, but the springs and such are still pretty close to the leading edge. The blue circle shows where .090 has to be removed to eliminate any interference problems that may occur when the disk wears. In order to use the GM throwout bearing I was going to use the flatty fork with a gm bearing end welded on, but I figured out an easier way, just use the GM arm. To do this just drill out the rivets holding the stock pivot out, and get the universal pivot ball. The pivot comes with a threaded insert, pivot ball and jam nut. The theaded insert needs a little grinding to clear the clip that holds the arm on, so grind 1/4" off, basically just above the outer threads. Now measure the difference between the pivots on the stock Ford arm and the Chubby arm. It should be around 1 1/4". Be sure to keep the pivot centered so that the fork will line up with the exit and the bearing sleeve. Weld the threaded insert in place flange side down on the mark. (EDIT!) rahter than welding it straight to the bell, add a 1/4 -3/8" spacer under it. Without the spacer the adjustment is real close to used up. Thats it, done even. works slick, has plenty of adjustment too. The only other area of concern is the change of ratio from the pivot out to the pedal lnkage, but I wont know if its a problem till the whole thing is assembled and in the truck. If the pedal is a bit stiff I will add a bit to the end of the arm and that should cure it. Hope this helps!