I'm developing a leak in front of the diff at the drive shaft. I'm guessing a seal is getting worn. Diff fluid has been sprayed under the body as you can see spots along the undercarriage. After sitting for a few hours, enough fluid is pooling at the bottom of the housing, but not enough to drip to the driveway. Fluid levels are good too in the diff, right at the fill hole.

What am I getting into if I want to replace that seal?

Should I be worried about pulling the drive shaft or need any special tools to get in there?

How many of you would pass on the repair until it gets more apparent?

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'04 Renegade 4x4
L.O.S.T. #058466
Car Domain, Updated: 2/23/2009
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Can't give you details on the repair but I would do it sooner than later. If lube can get out then water can get in and that wouldn't be good.

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99 TJ
71 C101
04 KJ
03 SFA KJ Sport
LOST JEEPS So-Cal

Good call JJ. I was flipping through the service manual and saw all these Mopar specific tools... Not sure I want to dig into it only to find that I can't replace the seal.

I may have to find an axle shop for this and some other work too.

Anyone else with a comment?

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'04 Renegade 4x4
L.O.S.T. #058466
Car Domain, Updated: 2/23/2009
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I would take it to a shop, have a few things to do that you may not want to get into

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

Like what,changing the pinion seal is like a 30min job.

caught me, I was rereading what he wrote and thought why did I say that , I was thinking about ....well I don't know...drunk again I guess
yes on these easy to do, sorry Mitch!

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

And I thought Eric, Scott, and I were being lush tonight. Dang...

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'04 Renegade 4x4
L.O.S.T. #058466
Car Domain, Updated: 2/23/2009
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HA yes not too bad , had a few gallons of ( homemade) wine and talking to the wife and typing, does not work at all, have you read through what you have to do yet to replace, not a bad job, of course depends on if you want to do or not!

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

Yeah the work didn't look too difficult, but was put off at the technical jargon. Plus I think my PowerTrax has some worn/busted springs. I may want an axle shop to look her over. Plus I have a couple goodies on the short horizon...

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'04 Renegade 4x4
L.O.S.T. #058466
Car Domain, Updated: 2/23/2009
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(_l_|_,\____\,_
{----__---_(olllllllo)
()_)"""""()_)--"--)_)

mmmm couple of goodies, 4.10s ? front locker? OK keep me in suspense!

anyone down that way any good at gear installations by the way?

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

Big Georges Off-road (Milford) did Modular's install. Jury is still out on their performance however.

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'04 Renegade 4x4
L.O.S.T. #058466
Car Domain, Updated: 2/23/2009
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(_l_|_,\____\,_
{----__---_(olllllllo)
()_)"""""()_)--"--)_)

Hopefully you don't have to bribe the jury

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Have fun out there.

2003 Cactus Green Renegade w/ NP231 & NV3550
Al's 4th Gen UCAs
Custom 3.5" Lift
Rear DTT
Spidertraxed 245/75/16 Maxxis Bighorns

Just because one prods a fire with his foot after a couple beers, he's labelled a lush

It's your Jeep being angry with you for not going to HNH.

Gear installs...I CAN say don't go to Cincy Speed. Kid I know with a V6 Fireturd will tell you the same thing.

So then it IS just as easy as popping off the driveshaft, pulling the flange and seal, then replacing in reverse order? Should I even be concerned with checking rotation resistance? How would YOU keep the pinion from rotating while turning the pinion nut?

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'04 Renegade 4x4
L.O.S.T. #058466
Car Domain, Updated: 2/23/2009
===_oooo
(_l_|_,\____\,_
{----__---_(olllllllo)
()_)"""""()_)--"--)_)

You will need a in/oz torque wrench to make sure you do not over-torque the pinion nut,stupid crush sleeves ,but yes it's as simple as removing the driveshaft(mark so it goes on the same way it came off),spinning the pinion nut off(where my impact comes in handy,no need to hold the yoke),pull the yoke,pop the seal out,install seal,put yoke back on and torque.

A large pipe wrench can be used to hold the yoke if you do not have use of a impact.