M4wd&Fabrications

Projects place => Classifieds => Wanted => Topic started by: FallibleXJ on September 10, 2012, 09:20:21 AM

Title: YJ brake booster & master cylinder
Post by: FallibleXJ on September 10, 2012, 09:20:21 AM
Hey folks,

After wheeling this weekend it became blatantly clear that the brakes on my old CJ are terrible. I am looking for the master cylinder and brake booster from a later model YJ to swap into it.
Title: Re: YJ brake booster & master cylinder
Post by: M4wdFab on September 10, 2012, 09:43:33 AM
you want 73-74 corvette MC, its 20$ at any white box store, 5$ core.


you will need to adapt from 3/16" hardline on the jeep to whatever the two sizes on the vet MC are, and you may need to shorten the push rod like on early years.
Title: Re: YJ brake booster & master cylinder
Post by: M4wdFab on September 10, 2012, 09:44:18 AM
o and your real problem is mud filled 4 wheel drums become 20% brakes until they dry out haha
Title: Re: YJ brake booster & master cylinder
Post by: rejeep on September 10, 2012, 10:41:35 AM
swap to disks in the front and you will notice night and day difference
Title: Re: YJ brake booster & master cylinder
Post by: FallibleXJ on September 10, 2012, 12:30:31 PM
you want 73-74 corvette MC, its 20$ at any white box store, 5$ core.


you will need to adapt from 3/16" hardline on the jeep to whatever the two sizes on the vet MC are, and you may need to shorten the push rod like on early years.

I saw that when I was researching, but I also saw people using the YJ parts. I figured the YJ conversion may be easier to track down parts for. And what do you mean by a 'white box store'?

swap to disks in the front and you will notice night and day difference

That costs quite a bit more money
Title: Re: YJ brake booster & master cylinder
Post by: rejeep on September 10, 2012, 12:37:52 PM
white box just means unbranded autoparts... 


not as expensive as you might think..
http://www.jpmagazine.com/techarticles/drivetrain/154_0704_early_jeep_disk_brake_conversion/


or you can always swap the front end for a later CJ
Title: Re: YJ brake booster & master cylinder
Post by: rejeep on September 10, 2012, 12:40:27 PM
and with nice pictures

http://trailforge.com/cms/index.php?option=com_content&task=view&id=19&Itemid=30
Title: Re: YJ brake booster & master cylinder
Post by: M4wdFab on September 10, 2012, 12:42:39 PM
paul and i both did disk swaps.


we swapped from the Knuckles out from doner axles.

should try to get some 297 joints in there also, since those 267's will snap pretty easy.