99-06 NBS truck disc brakes on 67-72 truck?

[indymachinist]

Hey guys,

I see there are already a lot of disc brake swap options.... I was just wondering if anyone has swapped the brake system from a later model truck into a 67-72?

These trucks are starting to be plentiful in junk yards so the parts should be getting cheap. The newer NBS trucks use bigger brakes with dual piston front calipers for one thing. Also, it would be nice to end up with a full matched set of brakes where it should all work together properly.

I understand this is not going to be a bolt together solution. I am a machinist with fab and some welding skills that I can apply in this setup. I like to tinker with these kind of things as opposed to buying kits already assembled. I guess you could say I have more time/resources than I have money. With that in mind, the local junk yard is having a special on Sunday. Anything you can carry for 50 bucks. I figure it will be easy to carry the entire brake system in a decent sized box.

I have been thinking I would attempt a full 6 lug disc brake swap with the calipers, rotors, master cylinder/booster, and parking brake set up.

Front would either take some kind of custom spindle, or an older style disc brake spindle with the caliper ears machined off and a bracket made to hold the new larger calipers.

Rear I would imagine to be fairly easy other than the need to machine/fab your own mounting bracket. Possibly the mounting flange on the rear end would have to be cut off and relocated for the internal drum brake style parking brake set up.

I have no idea what it would take to mount the master/booster combo to the truck.


I know there are draw backs to this for the average person, but I am a little bit crazy. Anyone want to help me think of things I haven't considered on this yet?