Well, my lift is on and I'm trying to install the front extended brake lines that came with the kit. Man, those old fittings are stuck! I've tried a flare nut wrench and then resorted to vice grips, but they're not coming loose. So I picked up two new fittings and rented a double flare tool from AZ. Just in case I fail at flaring, I just wanted people's thoughts on using compression fittings instead. Ok to use, or never ever ever?

 

Never, never, ever...






I've used them a few times

 

Yes don't use them. All it takes isonereally good hit of the pedal and the fittings can blow apart. I know atleast in MI.they are illegal to use on brake lines.

 

X3! Double flare only.

 

Let me know how you get it off I have one stuck on a master cylinder right now and I do not want to cut it off. I have used a gallon of PB blaster and every tool known to man for the removal of brake line fittings.

 

I ended up cutting the tubing... using a remover and flaring new lines when that happened to me.

 

I wouldint use compresion fittings if you wanna do it the correct way. But Ive used them as a temporary fix. or on like a old plow truck that never leaves the parking lot. But your XJ probably leaves the parking lot so go with flare.

 

Gonna have to learn to double flare. Anything other will blow apart from the pressure. Cut the old lines and use a 6 point socket on the old fittings. Invest in a flare-nut wrench too. Or make one. Notch a 3/8th box-end wrench so you can barely slip the brake line through.

Example- Cut yours with a much smaller slot if possible for more "grip".

 

Yea I used a flare-nut wrench no good looks like I'm cutting I have to do all new brake lines from the front to rear and in the rear to that car anyways so whats another flare. How many time should I expect to fill the 4oz. cup on my bleeder before I get all that air out?

 

UPDATE: By a miracle, I was able to break the fittings loose with the help of a buddy. I was working on the fitting where the steel line connects to the rubber line with one pair of vice grips on the fitting and one on the rubber line bracket...not enough torque. But with each of us holding a pair of vice grips with two hands it was just enough to do it. Yes! Thanks for the advice anyway guys...I still learned something