[mixermike]

I just finished this swap.i can't answer all your questions but I wil answer what I can. I have a 63 with a 283, 3 OTT, 373 rearend gears. I found a trans with the chevy bell housing bolt pattern. I have bell housing mounts so I didn't have to worry about a trans crossmember . I had to have the bearing retainer turned down so it would fit in my stock bell housing. I used my stock clutch pressure plate and throw out bearing.you don't need a high hump tunnel.when the trans is in 2nd and 4thh it is right up against the seat, but works ok. I put a little heat to the shifter and bent it closer to the dash because my wife is kinda short and I knew if she moved the seat up it might be a problem getting it in those gears. I am very happy with this trans, it shifts smooth and the overdrive is SWEEEEET. 65mph is about 2000rpm.hope this helps