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Old 06-04-2010, 07:07 PM   #1
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Brake Help

Ok, need a little help here.

As some of you have followed, I recently upgraded my Heep a little bit. One of the upgrades was swapping from the stock D30 / D35 to a D60 / 14Bolt. Everything is going fine except, as expected, the brakes aren't working that well.

Both axles have disc brakes and the TJ still has the stock master cylinder. Brakes work well until you crank it up and then the peddle gets super squishy and hits the floor.

Current thought is that the rear (specifically) is not getting enough volume of oil to operate properly.

Was wondering if anybody has done something similar and upgraded their master cylinder to provide the necessary added flow?

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Old 06-04-2010, 07:46 PM   #2
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that's gonna be interesting.

I know it all needs to be matched, however I'm not too sure how to match them. you might have luck on pirate4x4.com (I know it seems like I recommend them to you a lot....but those guys do the extreme stuff....most here don't.)

Might also chat w/ the guys @ Rokmen. they build some insane rigs, and are incredibly nice. (CALL THEM).

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Old 06-04-2010, 10:29 PM   #3
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that's gonna be interesting.

I know it all needs to be matched, however I'm not too sure how to match them. you might have luck on pirate4x4.com (I know it seems like I recommend them to you a lot....but those guys do the extreme stuff....most here don't.)

Might also chat w/ the guys @ Rokmen. they build some insane rigs, and are incredibly nice. (CALL THEM).
Pirate was my next stop. Gotta spend some time searching there so I don't get yelled at for 'not searching enuf'. You know how 'they' are.

I'm thinking what I might have to do is find out what volume the stock MC pushes and then find out what a, say, 2001 Chevy 2500 HD (the donor vehicle for the 14bolt) pushes.
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Old 06-04-2010, 11:34 PM   #4
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I did that swap in a blazer last summer. If you over travel the master cylinder when bleeding it can wipe it out.(how do I know this. ha ha) good thing it was on a friends rig. Do they pump up good while not running?
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Old 06-05-2010, 12:34 AM   #5
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I did that swap in a blazer last summer. If you over travel the master cylinder when bleeding it can wipe it out.(how do I know this. ha ha) good thing it was on a friends rig. Do they pump up good while not running?
Yup. But as soon as you turn it on the peddle goes straight to the floor.

Right now I'm looking at a hyrdoboot kit from Vanco.
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Old 06-05-2010, 01:23 AM   #6
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hydroboost that is

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