Bad ring and pinion? - JeepForum.com

 
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post #1 of 7 Old 01-30-2014, 08:37 AM Thread Starter
TheNewbie
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1995 YJ Wrangler 
 
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Location: Grand Jct, CO
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Bad ring and pinion?

I'm thinking about calling this guy about his Jeep.

http://westslope.craigslist.org/cto/4310370908.html

Says it needs a new ring and pinion up front. Of course we all know that even though he might be right about the parts being $300 or so, this isn't a job that I'd want to tackle on my own so my offer would be lower than his $2000 asking price.

If I do end up going out to look at it would you guys think that I would be OK to drive it 60+ miles home if it had a bad front diff?


1995 YJ 2.5 - 4 RC lift - 1" MML - 33's - flat fenders front - TJ flares rear -Raptor lined exterior - Herc'd interior - DIY front bumper & winch plate - 136 amp alternator mod - 4.0 TB swap

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I've got a shotgun, a rifle and a four wheel drive...
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post #2 of 7 Old 01-30-2014, 08:52 AM
grussell
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I would say it depends on what the damage is inside the differential. The parts will be moving inside when your driving it, so lets say maybe, maybe not.
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post #3 of 7 Old 01-30-2014, 11:39 AM Thread Starter
TheNewbie
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So does the front axle disengage on the WJ when it's in 2WD like it did on my YJ or is the front driveshaft always spinning?

1995 YJ 2.5 - 4 RC lift - 1" MML - 33's - flat fenders front - TJ flares rear -Raptor lined exterior - Herc'd interior - DIY front bumper & winch plate - 136 amp alternator mod - 4.0 TB swap

My build thread...
I've got a shotgun, a rifle and a four wheel drive...
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post #4 of 7 Old 01-30-2014, 11:44 AM Thread Starter
TheNewbie
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It's got the 4.0. He says it is making noise and when he pulled the diff cover there is play in the gears.

1995 YJ 2.5 - 4 RC lift - 1" MML - 33's - flat fenders front - TJ flares rear -Raptor lined exterior - Herc'd interior - DIY front bumper & winch plate - 136 amp alternator mod - 4.0 TB swap

My build thread...
I've got a shotgun, a rifle and a four wheel drive...
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post #5 of 7 Old 01-30-2014, 11:45 AM
brad_12
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I think you should be alright assuming it has selectrac and can drive it home in 2wd if it is indeed the front.

'99 WJ Laredo 4.7 QT II 2" Fat Bob's/Bilsteins K&N CAI Dynomax Exhaust
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post #6 of 7 Old 01-30-2014, 12:15 PM
skain8
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Pull the front driveshaft and drive her home.

'02 WJ: 4.7L, 5", HP44/9", 231HD, tall & skinny KM2's
Half-Ton axle swap guide
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post #7 of 7 Old 01-30-2014, 03:39 PM
Tollmtn
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Quote:
Originally Posted by TheNewbie View Post
So does the front axle disengage on the WJ when it's in 2WD like it did on my YJ or is the front driveshaft always spinning?
NO! WJs do not disconnect an axle so the axles will be spinning the ring and pinion, and driveline, the spiders will turn as you make turns. It is ultimately up to you but at the least I would pull the cover and look inside for myself then refill the lube before I would hit the highway for a 60 mi drive with it.

If you see any broken gears I would rent a tow dolly and load the front end. Why?....I once owned a IH scout LOL, the rear diff broke regularly. I usually cleaning out the loose broken teeth in the diff then removed the driveline. The results were mixed and totally unpredictable. Sometimes it just made some snapping and popping once and a while. Other times the broken tooth or teeth would time just right and lock the diff up solid. I just did this to get off the trail and back to a road where I could trailer it home.

The other thing to consider is.... If he just noticed some backlash in the gears and did not actually SEE broken gears it could be just a bad pinion bearings or a carrier bearing. In that case driving it could do unnecessary damage to the ring and pinion.
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