What Size Brake Shoes/Drum?? - JeepForum.com
 
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post #1 of 9 Old 04-26-2008, 04:21 PM Thread Starter
89CherokeeMike
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1989 XJ Cherokee 
 
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What Size Brake Shoes/Drum??

I have been getting mixed information (shoe sizes) from various parts stores (autozone etc) and even from online sources (partstrain.com etc) reguarding the "correct" size of the shoe.

My 89 Cherokee 4.0 I-6 did come w/a tow package but I never tow. Some stores said that I need the 2 1/2 inch brake shoes for my model jeep. Some stores said I need the 1 3/4 size. Others have said 2 inch. No one seems to be VERY SURE.

The current size on them now is 2 inch but I don't know if they were put on (replaced some many years ago) in error, since some say that the tow package jeep should have 2 1/2 inch brake shoes.

I also know i may then need new (correct drums to match).

I just want to do it right the first time and now follow any paths of error.

I am not a brake specialist (weekend mechanic.....junk yard pickin/cuttin/pullin enthusiast) and maybe someone can simplify this for me.

I've tried hunting down brake specs for my model but cannot find it anywhere.

Does Anyone have advice, tips, suggestions etc...(i did order a complete service manuel but am waiting for it in the mail)..I would appreciate it. Thanks.

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post #2 of 9 Old 04-26-2008, 04:44 PM
asp87
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how wide is the drum you have now and/or the drum they say you should have? i don't think it would be too huge of a deal as long as you have them both the same, as long as you're not towing. so if you have drums wide enough to accept a 2.5" shoe then get that, but if not, don't.

98 XJ, perpetually on jackstands
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post #3 of 9 Old 04-26-2008, 04:47 PM Thread Starter
89CherokeeMike
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I belive the current drum size is approx. 2 1/4......(thanks for your quick reply also)
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post #4 of 9 Old 04-26-2008, 05:14 PM Thread Starter
89CherokeeMike
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Quote:
Originally Posted by asp87 View Post
how wide is the drum you have now and/or the drum they say you should have? i don't think it would be too huge of a deal as long as you have them both the same, as long as you're not towing. so if you have drums wide enough to accept a 2.5" shoe then get that, but if not, don't.

**I just don't want to "damage" anything nor do I want parts that won't fit or "aren't" supposed to be used.....I just want what is reccommended for my jeep...I'll admit it, I'm just a damn perfectionist....lol....these guys at the parts stores all say, yea, this should work.....Never Concrete Facts....I mean, we are talking brake shoes....on an 89 jeep.....we are not talking micro computor processors for a space shuttle.....lol.....Thanks for your words/help again~
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post #5 of 9 Old 04-26-2008, 06:38 PM
tangofox007
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Quote:
Originally Posted by 89CherokeeMike View Post
I'll admit it, I'm just a damn perfectionist....lol....
Are you sure about that?

Quote:
Originally Posted by 89CherokeeMike View Post
I belive the current drum size is approx. 2 1/4......
The drum width with a towing package should be 2 1/2." If narrower shoes have been installed, you will need to have the drums resurfaced or install new drums.
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post #6 of 9 Old 04-26-2008, 08:33 PM Thread Starter
89CherokeeMike
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I am sure that the drums are not 1 3/4 nor are they 2 1/2....They are just a few 16ths (maybe 3) more than 2 inches. (thats my measure from the far inside of the surface to the exact outside edge.

**Also, thats part of my original question....Knowing what is SUPPOSED to be on it.....and NOT what someone may have, in error, previously installed. I was looking for Specifics for my model.....and/or having my tow package but NOT using it.........what is reccommended.......if any size even matters (w/it must).

***Yes your correct I think, w/the 2 1/2 size for the tow package.....but my drums must be 2......Im assuming is really doesn't matter.....and that I can put whatever size shoes on just as long as they have the matching drums.

But again, I was just looking for EXACT rear brake specs for my ride.

Thanks for your words and advice~




Quote:
Originally Posted by tangofox007 View Post
Are you sure about that?



The drum width with a towing package should be 2 1/2." If narrower shoes have been installed, you will need to have the drums resurfaced or install new drums.
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post #7 of 9 Old 04-26-2008, 08:49 PM
cheapfix
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Well, even if you find "exact" specs, there is no guarantee that you have the original axle in that thing. You are better off going with new shoes and drums that are a matched set. A 1989 w/ tow package should really have the Dana 44 with 10" drums and 2.5" wide shoes, but your info says Dana 35, so maybe you don't really have the tow package?

If they are 2.5" drums, and someone put on the wrong shoes, then have the drums turned at a shop, or replace them to avoid problems with the ridge created by the 2" shoes.

I don't think anyone can tell you what is exactly right from here, as we can't see your drums/axle/shoes. If you are measuring the depth of the drum, and it is just over 2", then it is for 1-3/4" shoes. The measurement is the width of the shoes, not the drum, and drums are always going to be deeper (wider contact surface) than the shoes that match it. Measure the width of the shoes you took off if you still have them.

Recovering moparholic
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post #8 of 9 Old 04-27-2008, 09:50 AM
tangofox007
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According to this, only some towing package vehicles had Dana 44 axles installed:
http://www.jeepforum.com/forum/f11/cherokee-stock-specs-26256/

Everything considered, it looks like you need 1 3/4" shoes. That would be consistent with a drum depth of slightly over 2".
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post #9 of 9 Old 04-27-2008, 06:43 PM Thread Starter
89CherokeeMike
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Thanks~

All of you guys are awesome and very knowledgable......I appreciate all of the help. We accomplished the work today and it wasn't too bad....except for the adjuster being old/very rusted and stuck, so I just bought a new one for $6. I followed much of the brake shoe/drum replace articles in the jeep forum and it helped a lot. As too did the advice many of you gave me in sizing of the right shoes. **I am very new to the jeepforum and this was my first post....I wasn't sure if anyone would even pay attention since my post wasn't too technical.....but it didn't matter, you guys gave another jeep owner some very good help.
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