Hi,I have a 89 camaro with badly rusted rear brake lines.I need to know if ALL the lines on the car are ISO bubble flare before i tear into repairing it.I know the axle lines are bubble flare because i've had them off before...but is the main line running from the frt of the car to the back also bubble flare or metric inverted flare?I've never had it off and once i break it off i don't want any suprises. Please only anwser if you know for sure..i don't need any guesses. Thank you

 

I too have an '89 but I haven't removed all the lines, just the rears when I switched to PBR discs. My solution was simple, convert all of the lines to double flaired. Since you are going to replace most of the lines it would make sense as bubble flairs are very difficult to make by hand.

 

how do you convert everything?

 

Use a rear hose from an ealier car (I think I used an '82 hose) that uses standard flairs, my calipers use 45 degree flared fittings, and I'm pretty certain that the prop valve will have 45's as well. Get yourself a bender and a high-quality flaring tool, practice a little on some pieces of a 25' line and go crazy! It's actually very easy...

 

thats just it...i don't want suprises and this thing stuck sitting in my driveway.I need to know what flare is where before i start ripping tearing.So the P valve is standard flare? this is nuts!

 

A bubble flare is by far easier and quicker to make than a double flare. The trick is to let the pipe stick over about 2 thousanths and not flush like the directions say. Double flaring is 2 different steps on the yoke while a bubble is only one. As long as your cut is good, you ream it out correctly, and file it down(you don't have to go crazy), it comes out great everytime.

 

I'm sending you some 3/16" line to start some for me!! lol

BTW - Found out yesterday as I began my prop-valve swap, it is all bubble flair - front to rear!