Will this trans bolt up to my /6

What trans is in it now? My 66 crank accepts a 904 or 3 speed manual and the mid 70 s 4 speed I have in it now. Advice is good but until You see it for yourself that it fits or doesn't you don't know. IMO that is a great price and my guess for what it is worth it SHOULD fit. You just won't know till you get in there.