donor year models for disc brake swap onto a 65 V8 Dart

Keep it simple, keep it early 66-72, keep it SBP. Sure the 4 piston calipers are expensive, but the bone yard is all the same price anyway. You can use your old LBJ (drill out 1/2 hole to 9/16) and the upper A arms. All you need is the spindle, rotor, caliper and backing plate. Go to dual disc/drum M/C while your at it. Worked for me.