Rear Main Seal - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Rear Main Seal

FS: Jeep Fog Light LED Bulbs! Several Brightness Options! SPARTAN LOCKERS are on sale BIG TIME at ROCKRIDGE 4WD!Yukon Ultimate 35 axle kit for c/clip axles with Yukon Zip

Reply
Unread 03-22-2002, 09:48 AM   #1
89JEEPNYC
Registered User
 
Join Date: Mar 2002
Location: New York
Posts: 90
Rear Main Seal

Hey my rear main seal is leaking really bad as a matter of fact on my 89Sahara4.2 . Has anyone out there done one? Hard, easy whats the deal. Any help would be great thanks

89JEEPNYC is offline   Reply With Quote
Unread 03-22-2002, 10:32 AM   #2
bighair
Registered User
 
Join Date: Sep 2001
Posts: 52
are you talking about your rear outpu shaft seal.. on yuor rear differential?? if so. no it's not a hard thing to replace..

I just did mine about 3 wks ago.. just make sure you have a 1/2 inch torque wrench.. and an impact wrench(important) otherwise, it'll be very hard to remove the lock nut.. it's usually Jammed in good.. hehe. once the lock nut is off. pull the yolk out.. pop the seal out clean everything thoroughly, then replace the seal with the new one.. and put your yolk back in screw the locknut and tighter it to the torque specs in a Jeep manual.. I can't remember of the top of my head what it was.

Also, while your there, check your yolk.. once the yolk is off, check and see if it's smooth or it has small lines cut into it.
this could also be the problem.

sometimes the seal cuts small grooves into your yolk which can also cause the leak..

hope it helps
__________________
Team Mod Squad
We are here to help YOU!
bighair is offline   Reply With Quote
Unread 03-22-2002, 10:53 AM   #3
89JEEPNYC
Registered User
 
Join Date: Mar 2002
Location: New York
Posts: 90
I have to do that seal as well . I noticed a little wetness around that seal.
But I meant the Rear Main Seal on the engine.
Thanks though I needed that other info as well.
89JEEPNYC is offline   Reply With Quote
Unread 03-22-2002, 11:07 AM   #4
bighair
Registered User
 
Join Date: Sep 2001
Posts: 52
k, np.. i havent done the rear main seal on the engine compartement yet.. sorry..

Good luck..
__________________
Team Mod Squad
We are here to help YOU!
bighair is offline   Reply With Quote
Unread 03-24-2002, 11:19 AM   #5
Mdwase
Registered User
 
Join Date: Feb 2002
Location: Trail, OR
Posts: 21
I did the rear main on my 89 yj about a year ago and it wasn't too tough. You do have to remove the timing chain cover and oil pan, so you might as well replace the timing chain. The other thing I remember about this repair, is that you can buy a one piece oil pan gasket that is spendy, but is much more reliable than the 2-4 piece felpro. The last thing is you need a small punch to knock out the crustified seal from the block, but be careful not to scratch anything. No need to drop the tranny for this repair if you do it right. Another thing I did was take a wire tool on a hand grinder and did the oil pan leftover gasket and crap on the outside of the oil pan and painted oil pan a light color to see if you have any oil leaks in the future. If you have any other question, contact me. Good luck.
__________________
92 Wrangler, Black,1"Body,31x12.50
89 YJ Wrecked Head on, no roll
90 YJ, SOA, 31 Muds, 4.10's, Lockers.
Mdwase is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.