Brake Master cylinder replacement

[aoriii]

It looks like I'm about to have to replace the brake master cylinder, and I've been looking at some online. I have 1985 coupe, and was wondering if a master cylinder from an 84 would fit. Were there any changes made during the next model year that would make them incompatible.

It seems that the 85 is the 'cut-out' in the C4 run. Lots of stuff to fit the 84 and 86, but finding stuff for the 85 is always tricky.

thanks

 

[spyysee]

I think so....I assume you have looked for the right one for your year? It should
not be hard to find!

 

[JonM]

84 unique to this year

85 unique to this year

86-87 unique to these years

88 unique to this year

89-91 unique unique to these years

92-96 unique unique to these years

http://www.tld-corvette.com/catalog.htm

 

[Magmotor]

Jon.

You probably already have this info but here's my two cents. The '84 has a 13/16" cyln bore. The '85 has a 7/8" bore. This alone would convience me that the two aren't a switch. Also, none of the GM numbers match for either year, power brake or not.
I found mine at O'Rileys for $122 w/lifetime warrty. But total different year tho...