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790 front diff pinion

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Joined: 24 Apr 2009
Posts: 148

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PostPosted: Sun Sep 30, 2012 11:40 am    Post subject: 790 front diff pinion Reply to specific post Reply with quote

Repairing my neighbors JD 790 tractor, no front wheel drive, no noise. Tore it apart and the pinion gear is wiped completly clean of teeth and there are no pieces anywhere, nothing but metallic sawdust! Ring gear looks like new! Has anyone seen this before? It's like the pinion was never hardend ? The bearings show minimum wear as well. Retired hvy duty truck mech and I've never seen this? EGBinOR
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tim s
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Joined: 01 Nov 2008
Posts: 12002
Location: Somerset Ohio

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PostPosted: Sun Sep 30, 2012 5:20 pm    Post subject: Re: 790 front diff pinion Reply to specific post Reply with quote

That does seem odd,,maybe a bad one to start with..
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