OK so heres the deal, 67 wagon 9in. drums allaround. Got a set of disc brakes off a 68 cutlass and a complete rear diff off a later GM G body with 11in drums.Im gonna swap the whole thing for the old set up. I know the rear wont bolt up but the backing plates should work. The front set up looks like it will fit. my qustion is what master cyl propotioning vale combo is the way to go? This will be a non power deal. Should I keep the original combo valve and use an adjustable unit for the bias for the rears or is there a better way to go? Wagon Dad...

I am useing a M/C off a 70 1/2 Camaro. It is for Fr. Disc, Rr. Drum Non power. I know 68 Firebirds were available that way also ( I'm sure others also ). I used the Pro. valve off the same car my Fr. Disc came off of which was a 71 Monte Carlo.

I also used a 70 Camaro MC that was a non power unit for front discs and rear drums. I used an after market adjustable valve.

Thanks alot guys,this takes some of the guesswork out of this swap..