tj, swapped in hp44 & 9" now no brake pedal - Great Lakes 4x4. The largest offroad forum in the Midwest

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Old April 27th, 2014, 02:02 PM   #1
landj
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Default tj, swapped in hp44 & 9" now no brake pedal

We swapped in a hp 44 and 9" The brake pedal goes to the floor . new caliper's, ( drum's on rear ) wheel cylinder"s. Do we need a large master cyl.?
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Old April 27th, 2014, 02:14 PM   #2
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It should work I had a 60 and 14 bolt in mine with no problems


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Old April 27th, 2014, 02:40 PM   #3
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Definitely a larger master cylinder. Get one out of a 98 dodge ram 2500 4x4. Direct bolt in, and it gives you a 1.125"or 1.25" bore so more volume of fluid moved with 1 pedal push. Vs a 7/8 tj one.
But if it worked for bbchevy. Maybe u don't need it. I've done quite a few of these swaps to help braking after swapping tons into a jeep..

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Old April 27th, 2014, 02:53 PM   #4
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These came out of a tj with no problems. tj we have is an early 97 if that means anything. While pumping the pedal and rotating a rear drum there very little drag. Like just enough to notice. bigchevy you did not change master rite?
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Old April 27th, 2014, 03:11 PM   #5
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I swapped in those same type of axles into my buddies 01 tj. Brakes are fine, 4cyl and factory booster. Maybe you let the master drain down and have to bleed the master as well.
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Old April 27th, 2014, 03:36 PM   #6
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We did let the master drain.
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Old April 27th, 2014, 03:40 PM   #7
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Mine was a 97 with stock everything


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Old April 27th, 2014, 03:42 PM   #8
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I think it has something with the master draining.
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Old April 27th, 2014, 03:42 PM   #9
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i used 1/2 ton chevy calipers in the past on all 4 corners. calipers use a lot more fluid than brake slave. There should be no problems with stock MC. Check your lines again for leaks. Bleed again. if you want to narrow down where the air is, pinch off soft hoses and isolate to FR, FL, Rear.
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Old April 27th, 2014, 03:43 PM   #10
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Yep. You'll need to bleed the master
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Old April 30th, 2014, 10:52 AM   #11
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Turns out the calipers were installed wrong. Bleeders pointing down. Thanks for everybody's help .
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