Here is what I have gleaned from various internet sites over the years and condensed it for when I needed it.
I would shop around using rockauto and NAPA etc., or even the local salvage yards for used parts. These are common GM parts, but you should purchase the rotors, brake hoses and small parts new. Last time I checked, NAPA had them for around $52 ea.
Calipers from a 71-78 Chevy 1/2 ton or light duty 3/4 ton 4×4 w/Dana 44
Federated part number 18-4046 and 18-4045
Caliper mounting brackets from 73-91 1/2 ton Chevy 4×4 (can be purchased new for $75 ea.)
Rotors from 77-78 CJ, rotors are 1 1/8? thick. (7/8? thick rotors from a late ‘78 on up will not fit!)
Federated part number 5356183R
Raybestos part number 3550R
10 longer wheel studs (Dorman PN 610106)
Wheel studs are 1/2? longer than original. Take an original in and match it up, it is a common
1/2? x 20 TPI thread, but the splines need to be longer to seat properly in the hub.
Chevy 1/2 ton brake hoses (2 needed)
Federated part number 36761BH
Raybestos part number BH36761
Bendix part number 77028
Banjo bolts (2 needed)
Edelman part number 13935
New anti-rattle clips.
Part number 5539
Disc Brake pads with semi-metallic linings.
Federated PGD52R
New caliper mounting pins. Use the ones with the round outer surface, and an Allen head. (The stock ones have an external hex-head)
The stock Dana steering knuckle will require some grinding to make a relief big enough for the inboard portion of the big Chevy caliper to clear. The area requiring the relief is in the area where the felt outer wiper for the axle tube ball bolts onto the knuckle, and the grinding can be done with the knuckle on the vehicle.
Throw the dust shields away, you don’t need them.