transfer case rear oil seal replaced but still leaks - Pirate4x4.Com : 4x4 and Off-Road Forum

Piratejeeper · 10-12-2005, 01:52 PM

Ahoy!!!

I have a problem with my 1995 jeep grand Cherokees transfer cases rear oil seal.

It started when my girlfriend drove the jeep and the rear u-joint went out.
No big replace the U-joint. Than I noticed the oil seal was leaking.
Replace that, it still leaked.
Thought maybe the guy did give me the wrong oil seal for the NP242 transfer case
replaced it again, still leaks. Checked for burs and found none.

any ideas on what's wrong?

Note I search the forums first to see i this was already asked
thanks

sidewys xj · 10-12-2005, 02:49 PM

Did you look for a very small groove in the tail shaft where the seal rides I have had axles that have done the same thing it seems like it dosnot take much. Sometimes when brake the factorey seal its hard to seal them back up hope this helps.

Red Wrangler · 10-12-2005, 03:16 PM

Quote:

Originally Posted by Piratejeeper

Ahoy!!!

It started when my girlfriend drove the jeep and the rear u-joint went out.

Failed how? If the joint gave out while driving and the d-shaft was banging around you could have bent the output shaft.

Check for play, and check for debris in the mounting surface, and check surface the seal rides on for debris/rust/pitting.

...and dont let the GF drive your junk!

ZukIzzy · 10-12-2005, 03:26 PM

drive shaft slip yoke leaking from the pressed in disc on the ujoint end happens all the time. check there.

Wayne

cphatmike101 · 10-12-2005, 04:38 PM

check your tail shaft housing it could have a small crack on it. its just pot metal and it breaks real easy. and that crack just might be were your seal is.

Jeffro600 · 10-13-2005, 03:33 PM

What brand of seal did you use? I know it sounds weird, but ive had "autozone" seals fail on three seperate occasions on my XJ...one worked for about a day...the other 2 failed within minutes of install. Got a Federal/Mogul one from AdvanceAuto and the leak went away and havent had any issues with it since. Go with a QUALITY brand from a place like Napa or your other better auto part stores...id be willing that will probably eliminate your problem.

Piratejeeper · 10-14-2005, 09:46 AM

everyone
thanks for advice
I will check into them all.

I did check to make sure it was not leaking at the transfer case and oil seal

Jeffro600 i used autozone, first that one sucked,
than I bought one from Autovalue that work the best (Federal/Mogul I think)
The current one is from NAPA.

10-12-2005, 01:52 PM	#1 (permalink)
Piratejeeper Registered User Join Date: Oct 2005 Member # 55434 Posts: 2	transfer case rear oil seal replaced but still leaks Ahoy!!! I have a problem with my 1995 jeep grand Cherokees transfer cases rear oil seal. It started when my girlfriend drove the jeep and the rear u-joint went out. No big replace the U-joint. Than I noticed the oil seal was leaking. Replace that, it still leaked. Thought maybe the guy did give me the wrong oil seal for the NP242 transfer case replaced it again, still leaks. Checked for burs and found none. any ideas on what's wrong? Note I search the forums first to see i this was already asked thanks

10-12-2005, 02:49 PM	#2 (permalink)
sidewys xj Registered User Join Date: Oct 2004 Member # 37397 Location: Billings Montana Posts: 66	Groove Did you look for a very small groove in the tail shaft where the seal rides I have had axles that have done the same thing it seems like it dosnot take much. Sometimes when brake the factorey seal its hard to seal them back up hope this helps. __________________ 91 xj 6in Long Arm

10-12-2005, 03:26 PM	#4 (permalink)
ZukIzzy Zeus of the Sluice Join Date: Jul 2005 Member # 50632 Location: Menifee Ca Posts: 3,173	drive shaft slip yoke leaking from the pressed in disc on the ujoint end happens all the time. check there. Wayne __________________ AllTech Motorsports Fuel systems, shock work, custom fiberglass and more (951) 970-3399 www.alltechmotorsports.com wayne@alltechmotorsports.com new e-mail address! Congratulations to Alltech customers Erik Miller, 2012 KING of the Hammers Rick Mooneyham 2012 2nd place John Currie/Gerald Lee 1st place EMC Derek West for 4 pole positions in 2012 And all our customers who finished or took the green flag!

10-12-2005, 04:38 PM	#5 (permalink)
cphatmike101 Granite Guru Join Date: Apr 2003 Member # 18750 Location: lowDi Posts: 659	check your tail shaft housing it could have a small crack on it. its just pot metal and it breaks real easy. and that crack just might be were your seal is. __________________ Why even both with lingerie, I mean, if you're fucking a goat, you're fucking a goat. No point in tryin' to Church it up with fancy clothes.

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10-13-2005, 03:33 PM	#6 (permalink)
Jeffro600 Registered User Join Date: Aug 2005 Member # 52268 Location: Hesperia, CA Posts: 53	What brand of seal did you use? I know it sounds weird, but ive had "autozone" seals fail on three seperate occasions on my XJ...one worked for about a day...the other 2 failed within minutes of install. Got a Federal/Mogul one from AdvanceAuto and the leak went away and havent had any issues with it since. Go with a QUALITY brand from a place like Napa or your other better auto part stores...id be willing that will probably eliminate your problem.

10-14-2005, 09:46 AM	#7 (permalink)
Piratejeeper Registered User Join Date: Oct 2005 Member # 55434 Posts: 2	everyone thanks for advice I will check into them all. I did check to make sure it was not leaking at the transfer case and oil seal Jeffro600 i used autozone, first that one sucked, than I bought one from Autovalue that work the best (Federal/Mogul I think) The current one is from NAPA.