I need custom lines for my master cylinder and I have no idea what the stock sizes are. I'm wondering what the stock line size is from the master cylinder to the lower unit that houses the proportioning valve as well as the thread sizes for the fittings all around. Thanks!!!

 

Your best bet would be to go into a hydraulic company or the like and have them check them for you, it seems to me that there are different ones for the various different years.

Ed

 

Someone must have made custom lines at one point.

 

I'm with ebMiller on this one...

Open the yellow pages, find a hydraulic hose/fitting company, and go from there. Fittings are so confusing, and trying to figure out what was used 20 years ago is a pain in the butt.

Just because it threads together doesn't mean it'll seal, either. An experts opinion will be worth your while in the long run.

 

I guess I'm just confused since these are stock fittings, I think removing half of my brake system to get a professional opinion is a bit overkill although I appreciate the info.

 

I have the info somewhere for my 85 iroc with 4 wheel disc. But, I would guess that unless you have an 85 iroc with J65 4 wheel disc then your system will be different. They messed about with the sizes depending on age and brake options.

Si.