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What's easier: installing new drum brakes or upgrading to Liberty KJ disc brakes?

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Old 02-23-2018, 09:29 AM
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Default What's easier: installing new drum brakes or upgrading to Liberty KJ disc brakes?

This morning I discovered that my rear brakes aren't working when I tried to stop in the parking lot of my work. The front half of the parking spot was covered in a very slick ice patch, while the back half was dry. The front tires locked up and slid while the rear tires seemed to do nothing. I backed up and repeated the stop several times, with the door open, so I could watch what the tires were doing. It seemed that no matter how hard I pressed the brake pedal, the rear wheels weren't stopping at all.

Therefor I'm pretty sure the drum brakes are bad. Maybe the brake cylinders are shot.

Now might be a good time to upgrade to the Liberty KJ rear disc brakes? But only if it's really worth it. Time and energy are just as important to me as money these days, and I don't mind paying $400 for a shop to install new drum brakes.

I called my local JY and asked if they had the rear brakes from a Jeep Liberty, and he just said they don't sell brake parts and then hung up.

I have the C8.25" axles, 15" wheels.

What should I do? Thanks!

edit: is this a good deal?
http://www.rockauto.com/en/moreinfo....sn=438&jsn=438

edit 2: oh yeah and this is what my brakes looked like last summer:

Last edited by mannydantyla; 02-23-2018 at 10:38 AM.
Old 02-23-2018, 09:33 AM
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A rebuild kit is pretty cheap and will get you back to working breaks in an afternoon.
Old 02-23-2018, 09:43 AM
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IF you have all the parts the libery brakes are a bolt on and should take the same amount of time to install. If you have a junkyard to pull from the brakes will be relatively cheap but not as cheap as rebuilding the drums.
Old 02-23-2018, 10:00 AM
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Thanks guys!

Looks like I'll go for the drum brake repair if I can't find Liberty brakes. I'll try for a bit, but will want to get working rear brakes asap.

What about ZJ or WJ rear brakes?

Last edited by mannydantyla; 02-23-2018 at 10:04 AM.
Old 02-23-2018, 10:03 AM
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Originally Posted by mannydantyla
What about ZJ or WJ rear brakes?
I could be wrong, but I think at that point you're mixing apples and oranges.

The ZJ either has a Dana 35 or Aluminum Dana 44, and the WJ is a Dana 35 all day.
Old 02-23-2018, 10:13 AM
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Originally Posted by mannydantyla
This morning I discovered that my rear brakes aren't working when I tried to stop in the parking lot of my work. The front half of the parking spot was covered in a very slick ice patch, while the back half was dry. The front tires locked up and slid while the rear tires seemed to do nothing. I backed up and repeated the stop several times, with the door open, so I could watch what the tires were doing. It seemed that no matter how hard I pressed the brake pedal, the rear wheels weren't stopping at all.

Therefor I'm pretty sure the drum brakes are bad. Maybe the brake cylinders are shot.

Now might be a good time to upgrade to the Liberty KJ rear disc brakes? But only if it's really worth it. Time and energy are just as important to me as money these days, and I don't mind paying $400 for a shop to install new disc brakes.

I called my local JY and asked if they had the rear brakes from a Jeep Liberty, and he just said they don't sell brake parts and then hung up.

I have the C8.25" axles, 15" wheels.

What should I do? Thanks!

edit: is this a good deal?
http://www.rockauto.com/en/moreinfo....sn=438&jsn=438

edit 2: oh yeah and this is what my brakes looked like last summer:
I guess no one read this and understood whats going on...Front tires are on Ice if they didnt lock up there would be a problem. Bet if ya backed in the backs will lock up.
Attached Images  

Last edited by freegdr; 02-23-2018 at 10:17 AM.
Old 02-23-2018, 10:26 AM
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Originally Posted by freegdr
I guess no one read this and understood whats going on...Front tires are on Ice if they didnt lock up there would be a problem. Bet if ya backed in the backs will lock up.
Yeah...our reading comprehension is just fine.
Old 02-23-2018, 10:29 AM
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When were rear brake last cleaned and adjusted ?

Last edited by freegdr; 02-23-2018 at 10:33 AM.
Old 02-23-2018, 10:31 AM
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Originally Posted by freegdr
I guess no one read this and understood whats going on...Front tires are on Ice if they didnt lock up there would be a problem. Bet if ya backed in the backs will lock up.
The rear tires should have stopped the vehicle, because there was no ice back there. But they kept on rolling as if they had no brakes at all.

The front half of the parking spot is covered in shade all day long, while the back half is not. So when it snows, the back half is always dry after some sunshine, while the front always takes a lot longer to thaw out. We had a bad ice storm a few days ago.
Old 02-23-2018, 10:36 AM
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HA! freegdr nice job on that quick edit...lol
Old 02-23-2018, 10:38 AM
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Originally Posted by Joshua White
HA! freegdr nice job on that quick edit...lol
Just being nice...lol...
Old 02-23-2018, 10:42 AM
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Originally Posted by mannydantyla
The rear tires should have stopped the vehicle, because there was no ice back there. But they kept on rolling as if they had no brakes at all.

The front half of the parking spot is covered in shade all day long, while the back half is not. So when it snows, the back half is always dry after some sunshine, while the front always takes a lot longer to thaw out. We had a bad ice storm a few days ago.
Braking ratio is more toward front than rear which prevent this. On alot of vehicles there are valves that stop rear lock up to prevent this and loosing control. Xj do not have one.
Old 02-23-2018, 11:05 AM
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I appreciate all the helpful info

Maybe I should try and adjust them first. I didn't think about that
Old 02-23-2018, 11:23 AM
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Originally Posted by mannydantyla
I appreciate all the helpful info

Maybe I should try and adjust them first. I didn't think about that
Clean and adjust...Go from there.
Old 02-23-2018, 12:08 PM
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Yep clean and adjust Like Freegdr has suggested, that would be the easiest solution. I have disc brakes and on ice my fronts will lock if sliding on ice and the backs kinda drag a little but still rotate.. Im sure if I let off the brake then slammed them down all four would lock,that would not be fun.


Here is a vid of me working the brakes trying to stop on slick road this winter. If the backs locked in this moment It would of sucked..lol
Sorry for the colorful language in the vid..


Last edited by Dumajones; 02-23-2018 at 01:08 PM. Reason: fixing ****


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