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how do i find out my brake shoe size

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Old 09-12-2009, 07:14 PM   #1
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Default how do i find out my brake shoe size

title says it all any ideas or how toos? also does anyone kno if maybe the xj's that came with the factory towing option might have had bigger brakes? im just curious now that i kno how to figure out what ones i have

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Old 09-12-2009, 07:29 PM   #2
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Measure the ID of the drum, either 9" or 10". Or buy both sets and return the one you don't need. that what I did the first time I did the brakes. Do the same next time since I don't remember which I have, now.
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Old 09-13-2009, 12:22 PM   #3
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apparently 9 inch drums are smooth and 10 inch are fluted. so just look at your drums.
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Old 09-13-2009, 12:58 PM   #4
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Dimension will be stamped on the drum (if it is not too rusted to read).
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Old 09-13-2009, 01:15 PM   #5
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9 inch drum on the left. 10 inch drum on the right. There are cooling ribs on the outside of the 10 inch drum that you can't see in the picture and the 9 inch drum is smooth.
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Old 09-13-2009, 02:19 PM   #6
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9 inch drum on the left. 10 inch drum on the right. There are cooling ribs on the outside of the 10 inch drum that you can't see in the picture and the 9 inch drum is smooth.
x2
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Old 09-13-2009, 02:38 PM   #7
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I believe the 10's have fins.
A Question...will ten inch drums fit? I have a 8.25 with 9's but have a chance to get free 10's...Thx...Tj
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Old 09-13-2009, 04:40 PM   #8
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I believe the 10's have fins.
A Question...will ten inch drums fit? I have a 8.25 with 9's but have a chance to get free 10's...Thx...Tj
You'll have to change the brake assembly - from the backing plate out. I'm not sure, but you may have to get the shafts for the 10" brakes as well - as I recall, the 10" brakes are a bit wider than the 9" brakes (9"x1-3/4" vice 10"x2" or so...)
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Old 09-13-2009, 05:40 PM   #9
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yup, 10 inch brakes are 2" wide and 9's are 1 3/4
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Old 09-13-2009, 11:43 PM   #10
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well after three trips to carquest i just brought a drum and a rotor into the damned place
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Old 09-14-2009, 02:16 PM   #11
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Quote:
Originally Posted by 5-90 View Post
You'll have to change the brake assembly - from the backing plate out. I'm not sure, but you may have to get the shafts for the 10" brakes as well - as I recall, the 10" brakes are a bit wider than the 9" brakes (9"x1-3/4" vice 10"x2" or so...)
Thx Guys I guess I'll just wait for the disc conversion from a JY...Tj
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Old 09-14-2009, 05:23 PM   #12
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You'll have to change the brake assembly - from the backing plate out. I'm not sure, but you may have to get the shafts for the 10" brakes as well - as I recall, the 10" brakes are a bit wider than the 9" brakes (9"x1-3/4" vice 10"x2" or so...)

Nope... the shafts are the same..

but yes.. the shoes are different... 9 x 1-3/4, and 10 x 2-1/2
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Old 06-07-2010, 03:43 PM   #13
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Is there a way to know just by the year and trim?
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Old 06-07-2010, 04:01 PM   #14
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how do i find out my brake shoe size
It's the same size as your accelerator shoe!
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Old 06-07-2010, 05:18 PM   #15
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Ha ha ha !!!

My son has some pumas that say brake on the bottom of the left one and power on the bottom of the right. That made me think of those
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