replace bearing in front hub assy?

Thank AMC....

• * * Matt Macchiarolo
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I took his statement to mean in his picture of the new assembly installation,

the "space" he was referring to, he asserted was a race where another, external bearing is installed, and that is not the case. It's just the lip machined into the flange that the center hole of the wheel fits around.

Internally, I believe it does have two bearings.

• * * Matt Macchiarolo
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On my now sold 93 XJ. Yep, it was split about 1/2". When I noticed what was happening, I put the axle nut back on and squeezed it back together again. I ended up getting some longer bolts to replace the 12-points that held the unit on the knuckle, threaded them in with about 1/2" clearance, and used them as tapping points, tapped enough to get a pry tool to work it out the rest of the way.

I can't think of any reason why it would be different from a '93. Think about it, the axle stub is always rotating and slips into the splines of the hub assembly, so the splined bore, which is attached to the wheel flange, is also spinning. There'd be no reason to put an outer bearing there.

Even a stopped clock is right twice a day...

• * * Matt Macchiarolo
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Oops. Yeah, I could see how I didn't state that very clearly. I did mean internally to the hub "assembly" itself.

Like I said, next time I'll take pictures when I destroy, er I mean replace the current ones... :)

-John

Agreed. A picture is worth a thousand words. My description was poor. I didn't use 1000 words in my description...

Oh, and it still doesn't belong in a real Jeep -- which is OK since I don't own one... :)

-John

here is what a front hub & bearing looks like disassembled on a 90 XJ

later, dave

I checked, Bill... the website says that hub is for up to '99 Cherokees... I mailed and asked, but AFAICT that hub won't fit my application. Pity, too... save a few bux. __ Steve .

I'd say the every front wheel drive car that I've ever had the hubs out of(and theres been a bunch of them)looked just like that. Also S-10 and full sized Chevy and GMC trucks use pretty much the same setup. The hubs on my S-10 had over 300,000 miles on them and were still OK when I totaled the truck. On a Geo Prizm(Toyota Corolla)you actually have to disassemble the thing and replace the bearings only. Seems it's a case of old technology replacing new technology...maybe the tapered roller bearings weren't such a good idea after all.

-- Old Crow '82 Shovelhead FLT 92" 'Pearl' '95 Jeep YJ Rio Grande ASE Certified Master Auto Tech + L1 TOMKAT, BS#133, SENS, MAMBM

You might be able to install it with a same year brake disc/rotor. IIRC You also might have to use different caliper bolts, the older styles might be too long.

I put a '90 XJ front hub and rotor on my '88 XJ (4 wheel drive). Definitely different brake rotors.

I have seen new hubs for around $80 too! I got two used '90 hubs for $10, so I gave one a try. :-)

I guess that I am used to seeing them on most of the VWs that I work on. ;-)

later, dave

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Indeed, VW used them in the early A1 & B1 fwd cars (Rabbits & Dashers for you non-VW types). Old Beetles had them until the dawn of ball jointed front axles.

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Well, I got my email back from 4wd.com... they're not sure whether the part is different or not. I can call my trusty local parts store, find that bit of info out, then burn them by buying online... or not. Shipping will add some bux, and I like having a decent relationship with parts counter guys. The dealer wants $260, and other parts houses want $200. Besides, then I'll have matching, made-in-Brazil hubs! __ Steve .

I'm with Bill on this one - every car I've had has had taper rollers. I never had a problem with taper rollers either.

Dave Milne, Scotland '99 TJ 4.0 Sahara