I just bolted a set on for my fathers 70 challenger... go to this link and read the models that work..
it cost us inder 200 bux for the whole shabooby..
http://www.bigblockdart.com/tech/spindles.shtmlfind one of dem dare fmj body cars... thier a dime a dozen..
Now that you know what car your looking for the rest is easy...
ok - load the cars suspension and remove the upper bj from the spindle. unbolt the slindle from the lower bj - drums are gone!!
take the spindle from the donor car ( we used a 78 lebaron with longitudinal t-bars) and unbolt the lower ball joint - it;s a completely different design on your car, using your lower ball joint and your nuts and bolts ( the new bj is threaded) tighten it up and re install the upper bj into the new slindle, and your set.
I would take as much as I could from the donor car - porportioning valve ( needed to use the fittings from donor car on 3 of the 5 fittings, as they are different) master cyl, calipers, ( cores only) and get 74 dart carliper, hoses, rotors, bearings, selas, master cyl, and pads)
ta da.... all done - now go beat it and you wont need 2 feet to stop it!
good luck - we did ours in a few hours, runnin to the parts store twice.. the motor was out so it made it easy to get to the lines, whick will be the hardest thing to get to if the motor is in there!