Good Morning,
Attempting to solve my brake line issue on my 2008 Ram 1500 4x4 5.7.

I am not 100% for sure the fitting sizes. Please help?
Here we go:

line starts at rear port of master cylinder.

and is attached to top/front of block.
This is entire line:

this is end at block. Broken

and now if I remove broken line from fitting that goes into block.

 

Take the line, and fittings to your local auto parts store. They should be able to match one up for ya, without too much trouble.

 

Tried that method. No help.

 

Find a better parts store.

 

Brake line at a local parts store is getting hard to find ... My local Napa has some, but will not order anymore ... is being discontinued.
I found it hit and miss buying steel line from local.

I have gone to Nicop .... Nickle/copper brake, fuel, ATF lines ... Is all NTSB safety regulated and rust resistant.



$35 for a 25' roll and comes with different fittings .... I cleaned up my old fittings and used them over with new line. You will need a cheap $10 flaring tool.

The nicop is softer then steel so it is easier to bend and work with, still might want a cheaper bending tool.
Main thing is to determine the diameter of the line you are working with, so you can order the correct size.
The smaller 1/4" & 3/16" lines is very easy to bend and flare .... larger 5/16" is easy to work with, will need a bending tool though.
Probably need $30 in tools to get started, then a roll of nicop .... you can almost replace every line on your truck .... 25' does not go as far as you think ...
Just saying, this is what I ended up doing for my old truck that needed all new brake lines and fuel line. .... plenty leftover to take care of any problems that come up.

 

FYI. Brake lines are usually double flare.

 

I am able to find the line, but not the correct fittings.
took the fittings in to tractor supply to size. Sizer specifies the smaller male end of adapter plug is m10 1.0 and female side that accepts the line is m12 1.25

 

While it may sound cheap .... the old fittings work, as long as they are not stripped out or something.
A cheap flaring tool kit from Amazon .... this one is $20 from Amazon.




You can see the fittings just slide on the line .... the flare at the end of the line is what seals .... the fitting is just a nut that pushes the flare tight to seal.
On my 1949 Dodge truck, I just cleaned and painted the 75 year old fittings and only replaced the lines. ... I'm either cheap, or just too lazy to look up replacements.

Same time I did install a modern Toyota Master cylinder that had the metric threads. Amazon carries a wide variety of brake line fittings .... I needed the metric fittings and a adapter to convert them to standard SAE threads. ... Amazon has all that stuff.

I would just get a line slightly longer then what you need, cut one end off and replace the fittings with the ones you have. Then flare the end and install it.
Order new ones from Amazon or some other on line outlet. .... I'm sure RockAuto has them also ... just more difficult for me to navigate their site to find oddball stuff I want.

I also order a lot from Amazon .... usually a few $$ cheaper then local + shipping ... I live 1.5 hours away from a town large enough to have a harbor freight or a home depot etc .... freight is cheaper then my gas $$ to drive local and pick it up. Plus 3 hours driving round trip and whatever time spent shopping.

 

Just be sure to put the fitting on the line BEFORE you flare the end. Don't ask me how I know this.

 

Anyone that does brake lines have done this at least once