[outfield]

Try to find a '71 or '72 rusted out 3/4 ton 4x4 with a bad motor for cheap, it will have the axles, spring hangers, tranny/t-case, cross members, steering parts and drivelines you will need. If you're looking at a '71 make sure it has the front disc brakes. These years will have the 205 t-case which is preferred. Buying the complete truck will ensure you get matching gear ratios in the axles too, unless it was pieced together...