450 pinion follow-up question

Hugomann · Mar 5, 2010

Well, I loosened the brakes on both sides of my 450, and now the wheels will turn freely, but only in opposite directions. So I must have a locked up pinion, right? I drained out the fluid in the rear end, and it was many gallons of water but little rust. How do I go to the next step? Is there a way to remove the ring gear without completely removing the differential, so I can tow it? Thanks for the previous replies.

Aces · Mar 5, 2010

Hugomann If you pull both brake shafts you should be able to tow it. You will have only the rear axels turnning.

Owen Aaland · Mar 5, 2010

If you have both rear wheels off the ground and a wheel turns only if the other one is allowed to turn in the other direction, The bull gears, bull pinions, and differential are all working like they should. The ring gear and pinion are not turning.

Does it feel like it shifts OK? You might remove the shift lever and make sure all the forks are in their neutral position. It may be locked in two gears at the same time.

Wardner · Mar 5, 2010

Don't think you can pull the bull pinion (brake shaft) without removing the bull pinion cage. I believe the inner ball bearing is pressed on the inner end of the bull pinion and won't clear the cage. The cage can only come out if the large bull gear is removed from the tractor axle.

Somebody will have to comment on whether one of the bull gears can be slid off the axle through the PTO opening and moved slideways to free up that axle. If so, you could then tow the tractor.

Frankly, I would rather make a dolly for the rear wheels or remove the wheels and tires and attach a truck axle to the drawbar. Or hire a wrecker to move the tractor.

As mentioned earlier, you probably have two sliding gears engaged in the transmission. That is a very easy fix on a 450. Remove the shifter column and align the notches on the shifter rails for the neutral position. That's a five minute job.

sflem849 · Mar 5, 2010

A loader tractor out to be able to lift up the rear end and shove it into the shop as well. I don't think I skid loader could make it happen.

Hugomann · Mar 11, 2010

That"s what it turned out to be--the transmission was locked up between two different gears. I removed the shift lever, noted that the three slide things were not in alignment, and aligned them with little effort, and presto! The thing rolls like a charm! I"ve now got it safely out of the weather and ready to work on! Thanks.

450 pinion follow-up question

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