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Rear Hubs, wear/Backlash

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Rich, NJ

01-24-2003 10:55:32

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I'm pulling the rear wheels off my 52 8N. I've found that the splines in the hubs are worn considerably. The back lash in the wheel is about 6inches at the circumference of the wheel. My experiences says this is not good. My pocketbook says it don't want to spend no more. New hubs are about 50$ @ Whats the max allowable backlash on a wheel? Can I continue to use them or do I have to put new ones in? Thanks Rich

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Neil in Ohio

01-24-2003 15:14:36

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Re: Rear Hubs, wear/Backlash in reply to Rich, NJ, 01-24-2003 10:55:32

I had this problem on my 8N. I had to replace both the hub and the axle. It is not a bad job. Just make sure to keep track of the shims and check the axle endplay after replacement. I got a used axle for $90 and a new hub for $45. If you get a used axle, there are two types. The old type does not have a journal in the middle and the new 8N style has one. My replacement did not have this and it has worked fine, so unless you are going to do heavy duty work, don't worry about it. It is supposed to work with an oil seal in the axle tube. A few new gaskets and seals will be needed.

I have found that if one removes the hub, don't mess around trying to reuse the old axle nut. I drill and chisel these off and always put a new one on. ($5). This way you won't ruin the treads or a breaker bar.

Hope this helps.

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ZANE

01-24-2003 15:00:42

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Re: Rear Hubs, wear/Backlash in reply to Rich, NJ, 01-24-2003 10:55:32

I am assuming that the retaier nuts are already as tight as they will go????? If they are then if you do it cosher you may have to replace both the axle and the hub to ever get a tight fit.

I have learned how to successfully shim the loose hub on an 8N or NAA. I use some banding material that is about .010 thick and about two inches wide. I use a set of shears to cut out six pieces just a little narrower than the spline. I take the nut off the axle and move the hub out about and inch or two and then push the shims up the spline till they are even with the end of the axle. Hammer the hub back up onto the axle until you can get the nut started and then tighten it with a handle at least three feet long. You can strip the threads off the axle if you go too tight so just use common sense. The torque is supposed to be 400 FT Lb if you can believe that.

Zane

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Rich, NJ

01-24-2003 19:10:22

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Re: Re: Rear Hubs, wear/Backlash in reply to ZANE, 01-24-2003 15:00:42

Funny how great minds..... .. I was thinking of doing that also. I think a.010 or an .015 shim would probably do it. I was thinking of building it up with a weld also. But Cast Iron can be a nightmare to weld. Rich

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