JZRIV Posted July 30, 2015 Share Posted July 30, 2015 (edited) http://youngstown.craigslist.org/pts/5032049886.html buick riviera & other big buicks olds, pontiac`s for sure 1967 68 69 70 factory disc brakes, rotors, spindles & calipers. rare find for sure. big bolt pattern. will fit many years & many gm makes get rid of those drums & up grade to fatory disc brakes. ac delco speeled out nice & large on the calipers. factory originals never find them with the part #`s & letters like this. hard to find for sure. these will fit all big gm car but chevys ful-size. wrong bolt pattern. these are 5 x 5" 1/2" threads on the studs. i got burned buying them for my impala wagon. different bolt pattern by 1/4". i just want to get my $ back. call only please Tough to find if these are what they say they are. Lots of detail pics on the CL ad. Its been too long since I owned my disc brake 67 to remember if these are correct. Maybe someone here can ID them Edited July 30, 2015 by JZRIV (see edit history) Link to comment Share on other sites More sharing options...
1965rivgs Posted July 30, 2015 Share Posted July 30, 2015 Jason, If these were `66-`67 calipers I`m pretty sure they should be dual piston type. Hard to tell from the pics but I think those illustrated are single piston. Did single piston calipers start in `70 for Buick? Aslo, shouldnt Buick and full size Chevrolet be 5 X 5 bolt pattern? What takes 5 X 51/4? Tom Link to comment Share on other sites More sharing options...
RivNut Posted July 30, 2015 Share Posted July 30, 2015 Tom, I think he's backing down a 1/4 to 4-3/4. Ed Link to comment Share on other sites More sharing options...
JZRIV Posted July 31, 2015 Author Share Posted July 31, 2015 Jason, If these were `66-`67 calipers I`m pretty sure they should be dual piston type. Hard to tell from the pics but I think those illustrated are single piston. Did single piston calipers start in `70 for Buick? Aslo, shouldnt Buick and full size Chevrolet be 5 X 5 bolt pattern? What takes 5 X 51/4? TomYea my first thought was the 67 Riv calipers were dual piston, then I started second guessing myself. I had a 67 Eldorado and they were definitely dual piston. Seems like these would have been for a lighter weight car than a Riv. Link to comment Share on other sites More sharing options...
rivgs Posted July 31, 2015 Share Posted July 31, 2015 Tom is right, single piston calipers are 1970, 67-69 are dual. These are a 1970 disc brakes. Link to comment Share on other sites More sharing options...
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