Hey guys:

I just finished bending up and flaring brake lines for my Ford 9", and they don't seem to be sealing up well at all. They tend to slowly drip and leak fluid. I used a 45-degree flaring tool that I have had for awhile. It has only been brought to my attention that there are also 37-degree flares as well. My question is:

What degree flares come from the factory? Are 37-degree flares the standard for automotive applications? Or should 45-degree seal without a problem? Thanks for your help.

 

Anyone?

 

I think you need to use a metric bubble flare.

 

What kind of flaring tool does that?

 

http://www.thetoolwarehouse.net/shop/SK-90428.html

 

Just saw this old post... but I wanted to add a link incase anyone seaching came across this.

http://www.pharmacy.arizona.edu/staf...ubleFlare.html

 

AN or JIC fittings depending on what name you want to call them use 37* flares. Old style brake lines use a 45* double flare. Cars made after around the mid 80's use metric bubble flare fittings.

You can keep your 45* flared brake lines on your 9" and buy adapter fittings to connect them to your car's metric bubble flare hoses. Many parts stores carry the metric adapter fittings.

 

Bubble flare....I was wondering what type flare is stock on our cars.

I done the LS1 brake upgrade and worked the hard lines to the stock location on a '98 and up. I was wondering what I'd need if I had to cut and flare the lines.

Now if I can just find a good alignment shop!