74 dart drum sbp to lbp disk

Just grab the spindles, calipers, caliper brackets, proportioning valve and master cylinder from the Diplomat. Pretty easy, just bring a pickle fork, bfh, 3/4" wrench, 3/8" line wrench (or just cut the brake hoses, you'll probably want new ones anyway), and a pair of pliers for the cotter pins and you should be able to grab the spindles and everything attached to them. Throw in some 1/2" tools and you should be able to grab the master and prop valve.

You shouldn't need sleeves to adapt the ball joints, pretty sure the later drum cars used the big ball joint uppers. And the lowers should be the same unless they're 9" drums, but I believe the later cars were all 10".