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post #1 of (permalink) Old 01-17-2007, 03:23 PM Thread Starter
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rear differential-repair or replace?

my son's 95 wrangler has a bit of an issue. The carrier, ring, pinion, bearings etc are shot. It seems he spun a bearing and didn't notice, everything went south from there. New parts are going to cost about 900 with another 400 for labor to rebuild the pumpkin. So far the only used rear we can find is going to cost about 700 with about 300 more in labor to get it back together. Normally I would do my(our) own work but it just isn't possible. I do trust the mechanic completely-he's been a long time friend. Although he is kinda expensive, he does excellent work and answers all my diy questions. And ideas, suggestions, parts sources would be appreciated. TIA
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post #2 of (permalink) Old 01-17-2007, 03:40 PM
 
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Re: rear differential-repair or replace?

Is it a wheeler or a stock rig on street tires? If it's a street rig and you got 100k + from the d35 it will probably last another 100k +.

If it's a wheeler ditch the 35. I'm a believer in that it's not worth it to drop $$ into a d35 or upgrade them. As soon as you start upgrading them it becomes a complete loss of $$. If you are getting prices of $700 for a d35 I can come up with a dozen for that price. I've junked a couple because people don't want em. Get on a couple local boards or pirate.

I personally would put an exploder 8.8 in it and be done with it. For a good mechanic you are looking at 3-4 hours labor and as far as parts go spring pads, spring plates, shock mounts, u-bolts, an adapter flange or u-joint, maybe brake lines, and if you want an e-brake brake cables from a zj.
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post #3 of (permalink) Old 01-17-2007, 03:43 PM
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Re: rear differential-repair or replace?

$900 for new parts seems exceptionally high to me. For that kind of money you should be able to buy a new ring and pinion and a selectable locker, and not spend any more for labor. That's what I'd do rather than spend a grand to put in a used axel.

But $700 is high for a used axel. Around here light truck junkyard axels are $75 to $150 depending on the yard. Of course you don't see Wranglers in yards here, but isn't a little Waggie the same width? They're commmon as fleas on a hound dog.
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post #4 of (permalink) Old 01-17-2007, 04:00 PM
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Re: rear differential-repair or replace?

All those prices seem exceptionally high to me!

Gears $150-$200
Install kit including bearings $120 on the high end

Labor to have someone install them... that ranges, but high end $300

So let's say $650 roughly

A new/used axle from a junkyard, for a D35, $100-$150 and install it, assuing you can find the same gears.
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post #5 of (permalink) Old 01-17-2007, 04:03 PM
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Re: rear differential-repair or replace?

Call this guy, he has always given me great prices on new diff parts DC 4wd
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post #6 of (permalink) Old 01-17-2007, 04:20 PM
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Re: rear differential-repair or replace?

Fix it? Nope, not me, I'd throw in a Ford Explorer 8.8 and drive it...
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post #7 of (permalink) Old 01-17-2007, 05:28 PM Thread Starter
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Re: rear differential-repair or replace?

Thanks for the replies and especially that article on upgrading to the 8.8. I'll be seeing my son this weekend so maybe I can convince him to go that route. It depends on if he is planning to keep the jeep or not. Funny thing is he bought a 95 exploder for transportation while the jeep was getting repaired. Thanks again.
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post #8 of (permalink) Old 01-17-2007, 08:09 PM
 
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Re: rear differential-repair or replace?

Let me let you in on a little secret about how most general mechanics and dealerships "quote" most repair jobs. They have joe the mechanic pull the jeep in the shop, look at what needs to be done, some times tear it apart, some times just look at it from the outside depending on what they are "quoting". Joe mechanic comes to the service writer/ manager and tells them what parts it needs.

The service writer then calls up his favoirte parts house(napa, carquest, bumper to bumper, ect.) or if it's a dealership they go to the parts counter and tells them what they need. If it's a parts house or another dealership they give him 2 prices, his cost and the list price of the part (if you were to go to the same parts house you would pay some where in the middle unless you have a good account to use for a discount). The service wrtier doesn't allways shop around for the best prices. The parts house he called for the gears and carrier probably told him dealer only. So the service writer calls the dealer for genuine mopar gears, carrier, ect.

After the service writer has his parts prices then he goes over to the puter and looks up the book time for the job he is quoting, if it says the job is 5 hours book time he multiples the 5 hours times the shops hourly rate. Then the service writer should give you a estimate with the list price on the parts and the labor.

That's how most general mechanics that work on everything from hondas to 1 ton trucks quote parts. If you go to an offroad shop or guy that does work on the side they may hunt for better prices and have other options for parts much cheaper. I can't get on our school's copy of mitchel on demand or I could give you the book time for d35 gear setup, i'm guessing 5-8 hours.

Disclaimer that's my personal experiance and that's not how every shop does it.
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