Daily Driver YJ Rear End not working...Please HELP!!! - Jeep Wrangler Forum

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Old 06-05-2012, 10:11 AM   #1
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Exclamation Daily Driver YJ Rear End not working...Please HELP!!!

So yesterday I was going to pay bills in my '93 YJ, and when I left the parking lot, I heard a single, loud pop, and now the rear end no longer works. I've got the stock Dana 35 under it... I've done most other fixes on a vehicle, but differential/axle work is all new to me. I put it in 4-High and carefully got it back to the house (a few miles at 35 mph), but obviously running it like that's not something I want to do.

Does anyone know what this might be? It only popped once, and I didn't notice it trying to pull one way or the other, so both wheels stopped at the same time, which makes it sound like it's not an axle shaft or a spider gear (I could be wrong, like I said, new at this part of it...)

Not sure if the info I put up there is relevant; I just know I don't have $600 to give a salvage yard for another one. The beast is my daily driver, so I would like to get it rolling again Again, this is something I've not done, so any help you guys can offer would be greatly appreciated.
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Old 06-05-2012, 10:14 AM   #2
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Also, I live in Siloam Springs, Arkansas, so if anyone is in the region who might have the parts I'm looking for (maybe for less than a salvage yard), I would really appreciate it.

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Old 06-05-2012, 10:18 AM   #3
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More info

something I forgot to mention...
When I put it in gear, the driveshaft spins, so I know it's in the rear-end, not u-joint/driveshaft problems...
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Old 06-05-2012, 10:24 AM   #4
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My guess would be ring gear/spider gears perhaps... pop the cover off and see what you can find. Post some pic's if you can. Unless you have a SYE conversion on the t-case you can't drive for long period without the rear driveshaft... the fluid will leak out.. I would check places such as craigslist orhttp://www/car-parts.com for junk yard axles.. OR a local 4x4 shop might have some laying around you can swap in..
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Old 06-05-2012, 03:35 PM   #5
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load pops can be interesting. what happens when you put it in gear in 2wd and let out the clutch? the drive shaft just spins or u hear more crunchies?

be very careful driving, normally when the axles snap they like to walk themselves out of the assembly.
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Old 06-05-2012, 03:37 PM   #6
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Ten bucks says its the spider gears
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Old 06-05-2012, 05:40 PM   #7
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Quote:
Originally Posted by darkproximity View Post
Ten bucks says its the spider gears
^ im broke, or i would raise you another 20...
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Old 06-05-2012, 05:49 PM   #8
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Very similar thing happened to a friends moms Jeep not long ago and it was the spiders, here's a pic I snapped.. Almost broke straight down the middle of both
Click image for larger version

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Old 06-05-2012, 07:53 PM   #9
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Thanks!!!

Thanks for the responses guys, I really appreciate it. If you said spider gears, then you win money. One split in two like the pic, one split into thirds. Bought a new set from Harmon's in Tulsa, should be rolling again tomorrow.

Also found out that I was lied to and am running 3.07 rather than 3.73 gears (with 31" tires... Probably why my mileage sucks ) This probably goes in another thread (or has already been answered in a thread), but what would I need to do when i convert other than make sure front and rear are running the same ratio?
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Old 06-05-2012, 08:06 PM   #10
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Cheapest is to find a set a a junk yard and just put them in should be less than $500. for a set. good luck!
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Old 06-05-2012, 10:29 PM   #11
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FYI:
3:73 Ford 8.8 rear axles are a dime a dozen at Pick & Pull...

Well, there are lots and the price is too good to beat, at 150ish complete

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