master cylinder

[DIG]

Ok so the jeep is running woo hoo! Hits a pretty good lick too!! Now on to doing my gm power brake conversion!~ Does anyone know what size the two lines going into the original jeep master cylinder are? I am trying to figure out what size adapter I am going to need to adapt those lines to the GM which I think are 3/8 but not positive. Thanks..

 

[BrockGrimes]

Which GM setup?

A YJ power brake setup is pretty much bolt in except the brake rod.

 

[DIG]

I go tit off ebay its like a 9", it is a direct bolt in except for the fittings on the brake lines

 

[BrockGrimes]

Check this thread I believe the measurements are there:
YJ Brake Booster Upgrade