correct seals for diff and t-case? - JeepForum.com
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post #1 of 8 Old 11-25-2020, 10:38 AM Thread Starter
Alex_
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correct seals for diff and t-case?

Hello there, I was changing the oil on my dad 2000 4.7 v8 grand Cherokee and I noticed quite some leaks from everywhere, engine oil pan, trans oil pan, front driveshaft to diff and t-case to rear driveshaft.

Already got the engine pan gasket and the transmission can be resealed with rtv but I'm not sure what would the correct seals would be for the t-case and the differentials, as far as I know its a nv247 t-case and it has a front rzeppa driveshaft and a rear U-joint driveshaft.

it has a dana 30 on the front and a dana 44 on the back so what would the correct seals be from the rzeppa driveshaft to the back of the dana 30 and from the u-joint rear driveshaft to the back of the nv247.

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post #2 of 8 Old 11-28-2020, 09:11 AM
cDee63
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The front pinion seal on the axle sounds like it is leaking, the Spicer number is 44895. The transfer case rear seal is a National 710691, I believe the factory number for that seal is 4897298AA.

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post #3 of 8 Old 11-28-2020, 10:37 AM
WJ60
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The front pinion seal number is 5012454AB.
The TC to rear drive shaft seal is 4897298AA.
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post #4 of 8 Old 11-29-2020, 11:37 AM Thread Starter
Alex_
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@WJ60 @cDee63 Thanks guys, I was kinda lost since when I saw the exploded view diagram there were other seals in there and didn't want to get the wrong one that wouldn't fit.
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post #5 of 8 Old 06-10-2021, 05:55 PM
Bigcat2728
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Rear Dana 44A pinion seal

I feel like i'm in the same boat looking at the exploded view and want to get the right part. My dana 44a rear end is leaking and i'd like to replace that seal. And is there a crush washer in there? Thank you!

I barely touched it!
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post #6 of 8 Old 06-11-2021, 09:51 AM
Jeepinpgh
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Quote:
Originally Posted by Bigcat2728 View Post
I feel like i'm in the same boat looking at the exploded view and want to get the right part. My dana 44a rear end is leaking and i'd like to replace that seal. And is there a crush washer in there? Thank you!
I believe there is, but if you use the procedure shown in this video where you mark the nut and just tighten it back to the same position, you can replace with seal without having to deal with anything else. I just did this procedure and it worked great, leak stopped and no other issues. I will say the torque to get that nut off and back to marked position is intense.

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post #7 of 8 Old Yesterday, 10:01 AM
Bigcat2728
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Quote:
Originally Posted by WJ60 View Post
The front pinion seal number is 5012454AB.
The TC to rear drive shaft seal is 4897298AA.
You don't happen to know if there is a different part number for the Dana 44a do you? The dealerships seem pretty confused when asking about the D44.

I barely touched it!
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post #8 of 8 Old Yesterday, 11:44 AM
WJ60
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There are two different pinion seals listed: Before 7-17-00 it is 5012846AB, and after 7-18-00 it's 5072265AB. I'm no expert though, so try to confirm this with some online searching.
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