Go BottomJD 950 Oil Leak
 | BillBass
Join Date: Feb 2002 Posts: 190 North Texas 
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2001-06-20 29467
The rear seal on the MFWD differential is leaking on my 950. Anyone know if I can replace this seal without having to take the whole front end off? It appears I can just drop the drive shaft and remove the rear portion of the differential assembly. My service manual does not give good information on this. Looking at the parts manual showing an exploded view makes it appear it is possible.
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley 
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2001-06-22 29511
Don't know the tractor, so I'm not much help. I guess replacing a seal isn't considered to be a 'repair' because my Ford repair manual doesn't give a procedure either. I'd expect that I could get enough guidance from my dealer. The service department will answer questions like that for me. I suspect the job isn't exactly easy. It could be easy if the end of the pinion shaft was splined and fit into the drive shaft, u-joint flange etc., and if the drive shaft end of the pinion shaft can be removed. In such a case, the seal probably in under a snap ring and maybe an o-ring. If a bearing cap secures the shaft, the cap could be removed and the seal replaced straight away. However, I doubt things are so easy. More likely, a splined end of a pinion shaft can't be exposed and there is no bearing cap. The center section would have to be removed and the pinion shaft disassembled. Disassembly would require pulling the axles. Reassembly would require adjusting pinion pre-load and backlash. These are probably best and worst case scenarios. If it's the worst case scenario, I'll note that a lot of oil could be put into the front axle before it would be worth the trouble of replacing the seal. ....
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