AC 5050 rear end rattles

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   Good Morning all,
Before I embark in some exploratory surgery, I thought it best to talk with some other people to get a second opinion or two.

My father purchased an 2wd 5050 new, perhaps in 1977. The tractor has 
approximately 2200 hours. Never had a loader. I wouldn't call it's work 
all light duty, but it is mainly a mowing tractor. Tractor has been 
stored fairly well, had fluids attended and has been dependable except 
for a lift pump and an injector pump.

We have a new rattle and stiffness in the rear. When cold if you jack up
 either rear wheel you can not spin it by hand. Once you have started 
and run the tractor a few minutes you can turn either wheel by hand , 
but just. It seems the sides are symmetrical. It feels like a brake 
dragging, but it is not as I have both backed them off and looked up at 
the bands as my father rolled the wheel back and forth to see if they 
move, they do not.

It seems that it is in the differential or the output side on the 
transmission. Of note we did run the tractor a few hours down a little 
less than two gallons of hy-trans fluid. This included some steep up 
hill and down hill travel.

NEXT:

  Sounds seem to telegraph around this tractor, so I have not been 
confident I can narrow it down. We are going to try rolling the wheels 
while the tractor is off the ground while listening using a stethoscope.
  Jack up both wheels and see if the issue continues if/as both 
wheel are spun (this test with the wheels on the ground resulted in 
continued noise.

  I will also do some tight turns to see if the diff complains.
  I will drop the oil and see if there are any chunks.

Suggestions?

For some reason I am leaning toward the damage being in the output side of the trans rather than the differential.

We are a little tractor poor right now so I hope to get this one apart and back together this Fall. Any thoughts would be greatly appreciated.

Thanks,
John

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hermitage Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 16 Oct 2017 Location: Vermont Tundra Points: 2	Post Options Post Reply Quote hermitage Report Post Thanks(0) Quote Reply Topic: AC 5050 rear end rattles Posted: 16 Oct 2017 at 8:41am
	Good Morning all, Before I embark in some exploratory surgery, I thought it best to talk with some other people to get a second opinion or two. My father purchased an 2wd 5050 new, perhaps in 1977. The tractor has approximately 2200 hours. Never had a loader. I wouldn't call it's work all light duty, but it is mainly a mowing tractor. Tractor has been stored fairly well, had fluids attended and has been dependable except for a lift pump and an injector pump. We have a new rattle and stiffness in the rear. When cold if you jack up either rear wheel you can not spin it by hand. Once you have started and run the tractor a few minutes you can turn either wheel by hand , but just. It seems the sides are symmetrical. It feels like a brake dragging, but it is not as I have both backed them off and looked up at the bands as my father rolled the wheel back and forth to see if they move, they do not. It seems that it is in the differential or the output side on the transmission. Of note we did run the tractor a few hours down a little less than two gallons of hy-trans fluid. This included some steep up hill and down hill travel. NEXT: Sounds seem to telegraph around this tractor, so I have not been confident I can narrow it down. We are going to try rolling the wheels while the tractor is off the ground while listening using a stethoscope. Jack up both wheels and see if the issue continues if/as both wheel are spun (this test with the wheels on the ground resulted in continued noise. I will also do some tight turns to see if the diff complains. I will drop the oil and see if there are any chunks. Suggestions? For some reason I am leaning toward the damage being in the output side of the trans rather than the differential. We are a little tractor poor right now so I hope to get this one apart and back together this Fall. Any thoughts would be greatly appreciated. Thanks, John

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