I can not seem to locate a new 88 GT master brake cylinder. Does anyone know where to find one ? If I can not locate one is there a substitute cylinder that would work?
[This message has been edited by Duck 1 (edited 05-05-2023).]
[This message has been edited by IMSA GT (edited 04-26-2023).]
sanderson231
APR 26, 09:14 PM
The 88 master cylinder is 15/16" diameter for the front and rear brake cylinders. The 84-87 master cylinder is 1". So if you install an 84-87 in an 88 there will be modestly more pedal effort and modestly less travel. I had an 88 where a repair shop installed an early model MC and I didn't know it. I thought the brakes worked fine.
------------------ formerly known as sanderson 1984 Quad 4 1886 SE 2.8L 1988 4.9L Cadillac 1988 3800 Supercharged
sleek fiero
APR 26, 10:30 PM
amazon has them ready for shipping- AC delco they also have other brands.
Vintage-Nut
APR 27, 10:28 AM
You Have Two Options:
Repair-Rebuild the GM Unit OR Get an aftermarket unit which most are "Made in China."
IF you have the original Moraine / Delco Brake Master Cylinder (which the number 18010023 is stamped under the body) AND the bore is good: Repair / Rebuild Kit - GM 18010083 (eBay) Reservoir and Grommets Kit – GM 18014328 (or Cardone 1R-2755)
IF you want an aftermarket unit, Centric Brake Master Cylinder 130.62030 is make of aluminum which is better than cast iron: Summit says "Only 5 left in stock - order soon" VN
