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Order Ford 8N Parts Online

8N Differential Problem

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John

04-21-2003 11:52:48




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My differential broke while I was plowing snow this Winter. Finally tore the tractor down and discovered that the spider and spider gears broke or jammed and took out side gears also.

Unfortunately, ring gear must have picked up some debris from the bottom of the case. Pinion gear has two chipped teeth. One has a chip out of the side of the tooth, about 1/3 of tooth, and the other has a similar sized chip out of the top. The ring gear appears undamaged.

Can I get away with cleaning all of the junk out of the case and putting in a used differential assembly? I'd like to avoid tearing the pinion gear out.

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Bob - MI

04-22-2003 11:33:47




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 Re: 8N Differential Problem in reply to John, 04-21-2003 11:52:48  
Replaced a pinion on my 2N last fall and since then, I've been paying attention to differentials and gear sets on Ebay. There is one there about every 3/4 weeks and for the most part they have been reasonable. If you go to the boneyard, you may be looking at $400.00 for the complete differential and ring gear. More if you want a pinion too. I had a real difficult time getting a matched set of ring/pinion gears and finally just did the pinion. Got a whine in the rear end now that might have been there all along, I just listen more today I guess.

Good luck.

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JimNC

04-21-2003 17:46:31




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 Re: 8N Differential Problem in reply to John, 04-21-2003 11:52:48  
My 48N had a pinion tooth chipped real good, ring gear was good. No telling how long it has been like that. I deburred the chip and went back with it. Can't get much worse if you try and the pinion or ring gear decides to give up. Only you know how bad it is.

Hope this helps.

Jim



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souNdguy

04-21-2003 12:20:40




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 Re: 8N Differential Problem in reply to John, 04-21-2003 11:52:48  
I think if you don't replace the chipped pinion, you'll be looking at trouble somewhere down the road.. how long? depends on use. At the Construction co. I work at.. the mechanics always change out the ring gear and pinion as a set...
However, I do know that there are a few places to get the spider gears and diff carrier / ring / pinion.
You might be able to order parts from this site as well... don't know if they carry it or not.
Email me for more info.

Soundguy

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