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mingoglia
03-30-2007, 10:37 AM
So what are you guys with upgraded disk brakes in the rear using for a master cylinder? After upgrading to the 8.8 my brakes are sufficient but could be better. I've of course had the 8.8 in for awhile as like I said they are sufficient, but I'm always looking for better options especially now that I'm running a larger tire.

I'd imagine a master cylinder from a newer disk brake model would help if they're different? Anyone use anything from a half ton truck? If so, which ones? I suppose hydroboost is always an option...

Mike

rockwerks
03-30-2007, 11:07 AM
So what are you guys with upgraded disk brakes in the rear using for a master cylinder? After upgrading to the 8.8 my brakes are sufficient but could be better. I've of course had the 8.8 in for awhile as like I said they are sufficient, but I'm always looking for better options especially now that I'm running a larger tire.

I'd imagine a master cylinder from a newer disk brake model would help if they're different? Anyone use anything from a half ton truck? If so, which ones? I suppose hydroboost is always an option...

Mike


That will help a 97 and up, have you modded the inline pressure valve yet?

SavageSun4x4
03-30-2007, 11:12 AM
Mike,
I have an OEM Master cyl, and disk brakes all the way around. Chevy 1/2 T in the front and Ford Explorer in the rear.

I run 37s and I will be the first to say that when I moved to them after an OEM tire size I noticed the slowing of braking BUT, not much. I can lock them up at time I need too and can drive 101 at rush hour with any of them.

Given my druthers sure, wish it stopped like a Corvette or something, but its a Jeep.

For sure I would look at disk brakes in the front of your rig [if you don't already have them]. If you can lock up at will you are in pretty good shape and maybe only an upgrade in brake linings would be of help...

mingoglia
03-30-2007, 11:18 AM
That will help a 97 and up, have you modded the inline pressure valve yet?

Not yet. Initially when I did the install I recalled reading about modifying that but figured I'd see how they worked. Since they were sufficient I put off that mod. I may try doing that... They actually seem to be pretty balanced as I don't have any noticeable dive that's out of the ordinary. I can also lock up all 4 brakes although I'm about at the end of brake throw when they lock up (although still a couple inches off the floor).

Honestly I think the brakes are most noticeable on the trail. There are times when I don't make a waterfall that I have to stand on the brakes and still roll back a little. At this moment I'll hear a high pitched squeeeek...which I believe to be a overpressure release or something like that. Does that ring a bell?

Mike

rockwerks
03-30-2007, 11:23 AM
Not yet. Initially when I did the install I recalled reading about modifying that but figured I'd see how they worked. Since they were sufficient I put off that mod. I may try doing that... They actually seem to be pretty balanced as I don't have any noticeable dive that's out of the ordinary. I can also lock up all 4 brakes although I'm about at the end of brake throw when they lock up (although still a couple inches off the floor).

Honestly I think the brakes are most noticeable on the trail. There are times when I don't make a waterfall that I have to stand on the brakes and still roll back a little. At this moment I'll hear a high pitched squeeeek...which I believe to be a overpressure release or something like that. Does that ring a bell?

Mike

It made a massive difference on the 01 XJ I built for my brother in law last year

http://www.4x4wire.com/jeep/tech/brakes/xj_wjbrakes03/valve/index.htm

Id try this first and then go from there. on my 88 it made a ton of difference

Oh and here is my write up on getting rid of ABS and modding the valve

http://xjnation.homestead.com/antiantilockbrakes.html