I was havin a disagreement with a friend of mine and he says that single piston calipers were available on 67-68 chevelles and I thought 4 piston calipers were available, some info would be nice if anyone knows what came factory besides drums those 2 years

Thanks
Fatnova
www.joel.net/fatnova

You're right, singles came out on the 69 models, at least for Chevelles. Not sure about the others.

All GM disc brakes before '69 were 4-piston, fixed-caliper design. The single-piston floating caliper design was used on all '69 and later models except for Corvettes and the JL8 '69 Camaros (and '68 service option Z28s) that had 4-wheel disc brakes.

I am currently doing a swap on my 67 SS, and I got ahold of the spindles, Proportioning valve, and silgle piston calipers along with rotors. I believe came off of a 69 Buick. I know the spindles will fit, can I still use the single piston caliper?

Yes as long as you put on the 69 style master cylinder.

67,68 and 69 masters are the same. They are all the round design with the prop valve under the master. If your going to put single piston brakes on a 67 then you must use 69 type rotors, dust shields, caliper brackets, hoses and pads.

I just converted a 68 ss to 4-piston caliper brake's.i'm having a leaking problem around the pistons on left and right side's of the front.i was told this is why gm went away from this design is this true?

Originally posted by dup:
I just converted a 68 ss to 4-piston caliper brake's.i'm having a leaking problem around the pistons on left and right side's of the front.i was told this is why gm went away from this design is this true? This is a common problem with 4 piston calipers. The old castings get pitted over the years and leak even if they are rebuilt with new seals. They need to be sleeved with stainless steel and then rebuilt with new seals. This company is the place the most use for this service. If your looking to retain the correct disc brakes for a 67 or 68 this would be the best solution.
Bill Rose http://www.ssbrakes.com/