Seizure in Rear, Diff or Trans? Help!

1950 VAC I ran too long in very hot weather and something seized. It felt like the brakes were on but shrieked a terrible noise. I later found the rear end was full of hydraulic fluid. After it cooled off I drained it and put in some gear oil.It'll run fine unless I drive fast or work it too long, then it'll start slowing as if the brakes are on only without the shriek. When it cools it's OK. I looked for some plain bearings in the drawings but can't find any. I don't hear or see anything loose, wobbly, grinding or graunching. What's seizing up? Thanks! Dan.

• Dan's Case Page

I see a bushing VT-3769 inside the differential pinions (3). Is that the one?

Is it a painful repair? Special tools? Or can I do it with a propane torch and a deft touch with the hammer? I've split the tractor before to replace the seal that let the hydraulic in there in the first place.

Thanks again?

Pull the brakes and the differential carriers then the bull pinion shafts will come out through the side of the case.

I replaced all of the tranny bearings in my VAC last weekend. It wasn't too bad of a job, but I had the tranny seperated from the rear end housing, which is really the best way to do it. With the rear end housing removed access is easy, you can check the ring/pinion lash and the end play on the differential shaft, and remove the inevitable broken pto gear teeth that will be laying inside the rear housing.