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Unread 08-12-2011, 04:06 PM   #1
nathanninja
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1991 YJ Wrangler 
 
Join Date: Apr 2011
Location: Collegeville, Pennsylvania
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Which Hub Do I Use?

I needed a new outer axle shaft for my 91 YJ, so I got a used one from Jeff Daniels (local Jeep shop), and he gave me the whole thing, inner and outer shaft, with the hub/bearing assembly. However, when I got the hub off of the shaft, I sat it next to my old hub and it's slightly taller. The back of it is shaped a little differently, but it seemed to fit fine in my knuckle. I know at some point they changed the bearing type because my Haynes manual says that "early models" (soooo descriptive) can have the bearings repacked, but the "later models" are sealed. I don't know much of the vehicle history, all I can tell you is its what I think is the stock d30. The driver's side bearing has been replaced recently. I'm going to take it out and compare, but for now, here's some pics.

Old one is on the right, new on the left, you can see the newer one has a recessed bearing in a way


Old on the right, new on the left, you can see the different height


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Unread 08-12-2011, 08:22 PM   #2
TSEJEEPERS
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What shaft?
Did these come with the newer TJ shafts you were asking about in this tread?
http://www.jeepforum.com/forum/f176/.../#post12012924
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Unread 08-12-2011, 09:35 PM   #3
nathanninja
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Nope they came with a YJ shaft, it was a tad different than my other one, but fit right up. I ended up using the bearing that came with the shaft because it was better than mine, and it fit right with the shaft. Just to clarify, the bearings aren't repackable are they?
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Unread 08-12-2011, 09:43 PM   #4
Tom95YJ
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Quote:
Originally Posted by nathanninja View Post
Nope they came with a YJ shaft, it was a tad different than my other one, but fit right up. I ended up using the bearing that came with the shaft because it was better than mine, and it fit right with the shaft. Just to clarify, the bearings aren't repackable are they?
Newer YJ's had bigger U joints on the front axleshafts , I wouldn't be suprised if the hubs were bigger also !

The wheel bearing/hub assembly are not repack-able if it has play it needs to be replaced
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Unread 08-12-2011, 10:25 PM   #5
laredojo
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2002 WJ 
 
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I did this last year. I hope this works better for you than it did for me. the problem started with the brake disk. the new hub plate is a larger diameter than the old one, so the rotor wouldnt fit over the hub. So I got the rotor that went with the hub. this rotor disk is also in a slightly different place, further out board, so my caliper wouldnt work . the brake shoe on the inside kept falling off the caliper... what a nightmare.......
hope yours is ok.
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Unread 08-12-2011, 11:01 PM   #6
timatoe
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1990 YJ Wrangler 
 
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Use the one that was already on your Jeep.
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Unread 08-13-2011, 06:51 AM   #7
raynmaker
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I noticed a difference between 88 and 90 front axles when I swapped. Had to use the hubs, rotors and cal from swap axle and not my new ones might have something like that going on. I would use what fits your axle.
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