while you're at the brakes do this mod
http://www.stovebolt.com/techtips/draglink_adjustable.html then the master cyl
T-5
once you decide on the rear end also consider those brakes. the mid 70's 1/2T chevy 6 lug rears have 2.75'' wide drums, as do many other good choices.
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=013343;p=1#000002
this will take you some time
make good decisions
good luck and welcome to the world of olde trucks
