Join Date: Nov 1999
Location: Central California, USA
Re: 4 piston vs single piston calipers
You need to get 1969 caliper brackets, single piston calipers, and 69 rotors. Your old rotors may work. You can use one-piece rotors, you don't need the two piece.
I'm not sure how the hoses will swap over. 69 used a long hose that had a bolt on support to a hole in the upper A arm. 69 brake hose anchor point was on top of the frame rail, not on the side.
Be sure to get the upper caliper bracket mounting bolts.
I don't see any difference between 67/8 disc spindles & 69 disc spindles.
Check my web page for First Gen Camaro suspension info:
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67 RS 327 original owner. 1965 Lola T-70