I've done this conversion. You'll need hubs and rotors from an 81 ford 1/2 ton bronco, They're sold together at Napa for $41/side and the chevy large bore spindles 73-79 3/4ton chevy D44. You'll then be able to use your chevy outer axle shafts,breaks and hubs without problems. I opted to swap seals and bearings because I don't reuse wear parts with new parts, but that's up to you. total cost is abut $150 if you already have the spindles, New(r) spindles will run $75-$100/side I have that converted front axle for sale if you're interested PM me.