Anyone know what size the rear brake hardlines are? The ones that run from the splitter alone the rear axle and plugs into the wheel cylinders? I have the option of 3/8", 1/4" and 5/16".. I want to replace them on a D35 out of a 91 XJ. I also plan on upgrading to disc brakes on it so that could be a factor. Just want to make sure the fitting is proper.

 

Wish I could help you, bro. You finally stumped me on a 91 XJ question.... My 91 XJ Sport had a Chrysler 8.25 in originally. Now it has an 87 XJ D44 in it.

 

I thought they were 3/16. I could be wrong. Easy way to tell is if you go to the parts store have them pull a wheel cylinder and then just find the break line that screws into it.

 

I tried looking in my 91-93 Jeep Parts book but only gave part #s no sizes. Sorry.

 

Yeah I looked there first but no sized..I know we have a guy or two who work for a jeep place so maybe they might know. Going to goto napa tomorrow and see if they know.

 

most are 5/16..........

 

Just make sure you get the same size lines, the fittings you can always cut, change and reflare... Going up/down in line diameter will increase/drcerase brake pressure and biasing on that particular axle/wheel.

 

It is 5/16th had to replace them several times...

 

Thanks gang...

Stryker did you buy them locally or did you order them online? I know quadratec sells them in a 20ft kit with fittings..

 

I would go to advance auto and get a section of 5/16 and a Brake line bender with the flaring tool and make my own.

 

I got it at auto zone and they have different length you can pick up. HOpe you are good with a flaring tool... if not use compression fittings

 

My neighbor is so he said he'd help me flair the fittings..

 

I was wrong it is 3/16th hope you didnt buy any yet oops...


I was really doubting the 5/16th i said. So I actually used the search feature and found the correct size.

 

lol no worries I hadn't bought anything yet.. Havne't seen anything other then 5/16,3/8 and 1/4 online though..I'll call the parts house..

 

ok just got off the phone with the parts house and they have 3/16 so I will pick some of that up today.