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Farmall & IHC Tractors Discussion Board

Re: 400 differential


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Posted by D Slater on November 03, 2013 at 12:41:41 from (184.14.177.214):

In Reply to: 400 differential posted by tom dowling on November 02, 2013 at 08:42:40:

Tom if it was working okay when parked the only thing I can think of is rust. Hard to believe rust would stick the differential that bad. But you live in a climate that can do it sometimes. Even if in a open shed at certain times the weather is right for metal sweating. Water will drip from the housings. That said usually if rusted that bad the shift forks will also rust and stick and the sliding gears won't want to move on the main shaft.

Would try Pete's suggestion first. Take the brakes off then the plate inside shoe contacts. Then pull the bull pinion gears out. They go in the differential. Can't see the backs of the differential pinions or where they turn on the cross. But shine a light in the splines and look for metal shavings or rust. If it looks rusty you mite try leaving one bull pinion out and drive the tractor around. Maybe the vibration and oil slinging up on the differential would break things lose. Try to find a plastic lid or something to stick the removed pinion hole if doing. be carful with just the one brake. Also the tractor will stop moving if it breaks loose and gears won't hold the tractor.

If its not rusted the other posters already said what's needed.

This post was edited by D Slater at 15:05:12 11/03/13.



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