[SCOTI]

71-72 5-lug means disc brakes already so you just need the 'conversion' 6-lug rotors. These are available from many of the aftermarket companies that sell disc conversion kits for those swapping their drum equipped trucks over to disc.

Originally Posted by CG

Keeping the rear 6 lug and converting the fronts to six lug would allow me to use use wheels I already have, saving me money. And not having to replace the rear with a five lug axle assembly of which I would have to purchase, or get five lug axles to convert the six to five which I would also have to purchase, saves me money. I am aware of axle widths.

I will contact CPP directly and see if they make a rotor for what Im thinking of doing.

Thanks for the responses so far!!!

Possibly.... The wheels need to be disc brake spec'd off of a 71 or later 4wd.