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Old 08-29-2013, 07:46 PM
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Can not remove rear hubs from axle

I am working on a 1973 Javelin rear end, 232 engine with 3 speed manual transmission. The rear axle bearings are worn out and I wanted to replace the bearings and seals. In order to do this the rear hubs have to be removed. I can not get them off. The hub is mounted on a tapered shaft with a keyway, castellation nut and cotter pin. After removing the castellation nut and brake drum this is what I have tried so far.

Rotated the hub slowly and applied heat to the hub with a propane torch about two inches away from the axle. Hit the hub several times hard with a large punch and mini sledge hammer. I installed a heavy duty 3 prong hub puller, centered it up, put my air wrench on the end of the puller, turning the large screw clock wise in short bursts. It tightened up and then stopped. Would not remove the hub. I let the hub puller stay on the hub over night under tension, tried the heat and hammer blows again to no avail.

Anyone have some suggestions as to what I should do next? Thanks

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Old 08-29-2013, 08:42 PM's Avatar
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Here is my SOP from the seventies for tapered axle.

Remove large nut and washer re install nut upside down on axle screw on as fas as possible then back off about two turns.

Heat hub with torch. Then smack the axle straight inward with a sledge hammer. HARD. This shock usually gets them loose.
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Old 08-30-2013, 05:40 AM
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There drums are supposed to be attached to the hub using 3 screws if I recall my ancient history. These are in the front of the drum. They need to be removed if you have not already done so. Once you get that drum off, you probably can pull the axle and once that's out of the rear end, then heat soak it and off to a press. If you can't get the drum off even with the screws out, there is always the drill, then a hammer and chisel. Drums really aren't that expensive ($30-$50), even for that older car.
Irelands child
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Old 08-30-2013, 08:12 AM
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You have to press the hub off the shaft.
It will take a 50 ton press in my experience, my 20 ton press will not usually do it. Heat helps. Alot of heat helps more.
I used to do CJ's all the time till the one piece axle conversions got so cheap.
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Old 08-30-2013, 09:28 AM
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all above posts correct.propane torch probably not enough heat.tapered shaft,keways and mother nature have a way of tightening things up.
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Old 08-30-2013, 12:15 PM
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Hubs still will not come off!

I already had the drums off with no problem. I slowly turned the hubs applying heat to the hub for 3 minutes with a map gas torch, then smacked the axle hard several times with a 8 pound sledge hammer and it did not remove the hub. It looks like the map gas and 12 ton press that I have is not going to be enough to do the job.

Some people on the AMC forum said you could remove the brake line, emergency cable, and the 4 bolts holding the backing plate , remove the entire brake assembly, and then you could remove the hub and axle together, and take it to the machine shop where they have the 50 ton press to remove the hubs.

Unless someone has a better idea I will try that next.

Thanks so much for the information, I have a better idea of what direction to go now.
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