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Old 02-16-2024, 08:34 AM #1
parsky1 parsky1 is offline
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Transfer case rear driveshaft seal leak
I just serviced all the 4wd fluids and switched to Redline 75w-90. 190k. I noticed a hanging drip of fluid at the rear output of the transfer case to the drive shaft. Should I just replace the seal? I’ve heard before that replacing the seal is just a bandaid because usually a worn out bushing causes too much play and that wears out the seal. Thanks.


This is the best video I could find but it’s not a 4th gen…. Anyone know of a better one?

DIY: Toyota 4x4 Transfer Case Rear Flange Oil Seal Replacement - YouTube
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Old 02-17-2024, 12:00 AM #2
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Replacing the seal can be a temporary fix if the underlying cause isn't addressed. Make sure you take a good look at the bushing for any signs of wear and play. If it's showing some serious wear, it's probably a good idea to change both the bushing and the seal. That way, you can really sort things out and avoid having the same problems pop up again.
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Old 02-17-2024, 01:24 AM #3
Rocket3004 Rocket3004 is offline
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Here is a good video from a similar car from one of the forum members @mtbtim . Remember not to scratch the sealing surfaces of the seals. I can't comment on the bushing wear though.

Transfer Case Output Shaft Seal Replacement - YouTube
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