[hamjet]

To use the search go to the top of this page where it says google, type in what you're looking for, click the botton that says 67-72 chevy trucks.com and hit google. as far as 3 speed, 5 speed, as long as they have a 1:1 final drive its going to be the same. you can go to an automatic w/overdrive like a 2004-r or the beefier 700r-4, the 2004-r tranny is the same length as the 3 manual so same the drive shaft can be used. the x-member will have to be changed, cooling lines to the rad., TV cable and bracket to the carb, floor shifter, unless you get an auto column. google above and there are alot of info on swaps...