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Unread 03-17-2010, 11:24 AM   #1
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Loud pop while Off road this weekend

Like the title says. I heard a loud pop while I was off roading this weekend. I first thought I throw my drive shaft. It sounded like it came from the rear but you know how that can go. The drive shaft is fine. The Ujoints seem to be in normal condition (I just replaced them 100 miles ago). I can't seem to figure out what went wrong.

I am wondering if it was a driveline slip. As if the axle shaft, pinion yoke or some other component slipped and made the noise and now it is fine. The thing that worries me is that my rear pinion seal is leaking. I just replaced it because I like keeping my fluids off the trail and the driveway.

I am hoping I didn't damage my D35 too bad but I can't see any obvious damage to anything. I will be opening up the pumpkin this week to check out the ring and pinion.

Please let me know if there is a major issue you can think of.

It made the loud pop when I got high centered going down hill. I didn't push the jeep too hard but may have bounced it a little bit. The jeep drove home fine but I want to make sure I cover all the bases.

I am leaning towards the rear shaft. I noticed a small vib on the way home but I can't see any damage to the Ujoints or shaft.

Please Chime in!

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Unread 03-17-2010, 11:28 AM   #2
Alex74012
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hmmm....
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Unread 03-17-2010, 12:43 PM   #3
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I have heard pops and bangs before and after checking all ujoints, both diffs, all my fluids and my TC found that there was nothing wrong...Sometimes Jeeps just do that
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Finesse in crawling looks way cooler than momentum.
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Unread 03-17-2010, 02:49 PM   #4
asknight
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Pull the cover and take a look at the pumpkin. It could be spider gears grenaded, or you could have skidded on a rock and that made the noise.

There's only one way to tell.
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Unread 03-17-2010, 02:55 PM   #5
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sometimes while at full flex you will hear popping like from the skid plates or the springs. but not being there i cant really give you an exact answer
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Unread 03-17-2010, 04:11 PM   #6
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Keeping coming guys. Thanks for the info. I will be checking the gears tonight.
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And when you can't find the wrench your holding in your hand, it's time for a break:rofl:
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Unread 03-17-2010, 05:07 PM   #7
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This happened to me last fall while moose hunting. It had something to do with my pass. side rear brakes. Once I got home, i took the drum off, a small rock caused one brake shoe to jam.... You could see where the rock scored the shoe. It's worth a look.
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Unread 03-17-2010, 05:49 PM   #8
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maybe check the slip yoke. I know a guy who had popping he couldn't find when offroad. Turned out the slip joint of the yoke had cracked and was slipping past the splines on the shaft when flexed, but on flat ground enough splines were in contact that it wouldn't slip. The splines were pretty tore up before he figured it out and had to replace the shaft.
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Who made you clowns pope of this dump?
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Unread 03-17-2010, 06:08 PM   #9
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What would cause the spider gears to let go? Not familiar with breakage.
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Unread 03-17-2010, 06:14 PM   #10
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Well I took the diff cover off. Its my gears. My ring and pinion look great. Does anyone know how much it would cost to fix the gears? I know it is pretty much the same as regearing. If thats the case I may be on my knees begging the wife for 5,000 to get new axles.
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Unread 03-17-2010, 06:17 PM   #11
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If the ring and pinion look ok and it is just the spider gears, you could just get some used spider gears and throw them in. It would be the same amount of work and know how to install a lunchbox locker.
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Finesse in crawling looks way cooler than momentum.
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Unread 03-17-2010, 06:55 PM   #12
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I was under the impression that all of it had to come out as if I was upgrading the ring and pinion. Thanks for the info. If someone comes up with a good link let me know. I am in the process of searching now.
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And when you can't find the wrench your holding in your hand, it's time for a break:rofl:
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Unread 03-17-2010, 07:32 PM   #13
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grab spiders from another rear end or buy new ones, there like 100 bucks or less. i really wouldnt think the spiders would make a pop sound if it drove fine home etc, the teeth may be chewed up but thats not uncommon. normally when spiders go, they go with exploding force

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Unread 03-17-2010, 07:46 PM   #14
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haven't taken pics yet but my two sides and top gear are in pretty bad shape. The problem is I don't know how to replace the gears. There aren't many projects I shy from and I am sure I have the tools and ability. I am trying to find a good write up. Stupid me hasn't check the haynes book yet.

Is it any worse if I need to replace all four than it would be if I just needed to replace the sides?

I don't know if the axle shaft seals are shot but the rear pinion seal is busted AGAIN. I just replaced that stupid thing
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Unread 03-17-2010, 08:06 PM   #15
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I'm not even sure you have to pull the carrier to replace them...
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Finesse in crawling looks way cooler than momentum.
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