I just spent the last 2 nights(5:30 to 2:30) swaping in a 465 under my Blazer. We got everything bolted up and started her up. I tried to move it and the clutch wouldn't disengage. The linkage(mechanical) is adjusted all the way out but it still isn't far enough. It is a 465/208 combo with mechanical linkage. I used what I was told is a 1982 pick-up for the pedals and linkages and flywheel. Could there be some differance between the trans and the linkages?