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Unread 06-12-2013, 02:55 AM   #1
athoma
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Gears/lockers

I'm about to buy another wrangler the rearend is currently trashed. Something messed up with the locker while he was going down the road and it locked up and just trashed everything. So I'm looking for some advice on what kind of lockers you guys are having luck with because I plan on putting a new one in when I rebuild it. I'm not wanting to spend $1000 on a fancy air one just something decent. Also what gear ratio are you guys running with 37s with a little street driving but still does good out in the dirt. Any advice will be appreciated I've been out of jeeps for a little while but I've got the fever again!!

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Unread 06-12-2013, 05:16 AM   #2
gunshw301
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What rear axle does it have? If its a d35 than its not worth rebuilding. You would be better off upgrading axles or finding a replacement d35
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Unread 06-12-2013, 08:12 AM   #3
athoma
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I was told it doesn't have stock shafts I forgot up mention that but hell the rearend locked up going 40mph on the street so it could be trashed I have torn into if yet
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Unread 06-12-2013, 08:28 AM   #4
dillonjm
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Doesn't matter, there is no version of the d35, upgraded or stock that's even close to capable of handling 37s reliably.

Find out what axles are in it for sure, because if 37s are the goal and its got stock axles you'll need to change them.
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Unread 06-12-2013, 08:33 AM   #5
Destr0
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What he said! Axle replacement is the only real way to run 37s reliably. Well at least the rear axle needs to be replaced anyway. :-)
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Unread 06-12-2013, 10:25 AM   #6
JeepAddOnsChris
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37s you're going to need to replace both front and rear if you're going to see anything other than the road. Skinny pedal and deep geared HP D30s don't play well with a tire that big. HP D44 front/Ford 9 rear minimum.

Assuming you're running the 4.0... 5.13 gears do well.
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Unread 06-12-2013, 11:04 AM   #7
Relicmoto
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Search ford 8.8 axle swap, where I'm at I can get an explorer axle at the 'you-pull-it' for a hundred, but a dana35 is 150, and you can't touch wrangler parts at the same jy.
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Unread 06-12-2013, 11:30 AM   #8
athoma
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Thanks guys a friend of mine bought the jeep and it was already lifted on 37s and it does have upgraded shafts I'm just not sure what kind it has an ox locker up front and used to have one it back but it's supposedly pretty tore up I haven't looked at it yet but he told me about everything is trashed. I'm def not opposed to finding some full width Dana 44s but if I do a swap I'm gonna be tempted to do coils and and all that fun stuff haha
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Unread 06-12-2013, 11:31 AM   #9
athoma
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And yes it is a 4.0 and we have no idea what gears are in it but it has been re-geared for sure just don't know what yet
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Unread 06-12-2013, 04:02 PM   #10
jsipe007
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To be brutally honest I would not run 37s even on a set of dana 44s. I know guys do it and some don't have issues but that tire size is pushing it on a dana 44. Upgraded shafts would help but you are still relying on a fairly small ring gear. if you want 37s, a ford 9in rear is the way to go. Like Chris stated, 5.13s would be a good combo with 37s. The minimum I would go if running 37s would be a 4.88 ratio.
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Unread 06-12-2013, 04:14 PM   #11
Pawjob
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I run 4.56's with 37s on my Dana 30/Dana 44. I havnt had any issues with my Dana 30 after almost 3 years. I run a 30 spline molly shafts up front with Eton Elocker, and 30 spline molly shafts in the rear with Eton Elocker. Even when i was running my recentered H1 wheels/37's that weighted 150lbs each. But it all depends on your style of wheeling. Im not heavy on the skinny peddle, and with a 5.22:1 low in my Tcase I dont have to be. I use my jeep mostly rock crawling and some trails, I dont do heavy mud as it takes more wheel spin. I still go 70mph on the freeway. Spend the money on good parts and if your not out to thrash on it your Dana 30 will hand 37's just fine.
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Unread 06-12-2013, 05:05 PM   #12
PA_YJ19
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Quote:
Originally Posted by Pawjob
I run 4.56's with 37s on my Dana 30/Dana 44. I havnt had any issues with my Dana 30 after almost 3 years. I run a 30 spline molly shafts up front with Eton Elocker, and 30 spline molly shafts in the rear with Eton Elocker. Even when i was running my recentered H1 wheels/37's that weighted 150lbs each. But it all depends on your style of wheeling. Im not heavy on the skinny peddle, and with a 5.22:1 low in my Tcase I dont have to be. I use my jeep mostly rock crawling and some trails, I dont do heavy mud as it takes more wheel spin. I still go 70mph on the freeway. Spend the money on good parts and if your not out to thrash on it your Dana 30 will hand 37's just fine.
X2 I run 36s on a dana 30/ dana 44 combo and I've never had ne issues either for 2 yrs now. I have chromo shafts in the rear but just stock tj shafts up front. I don't break front shafts or joints, but just like above all I do is rock crawl. I've gone thru some deep mud but that's not what I'm setup for. I leave the mudpits to the big trucks that can't fit on the trails. I've gone thru mud up I my headlights tho n all is well.
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Unread 06-12-2013, 08:21 PM   #13
britrider
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Can't speak to experience yet as I'm still building, but I re-used my stock D35 rear with a Yukon Grizzly in conjunction with 4.56:1 gears, at the recommendation of the axle shop I used. Setting up gearsets is a precision business which is why I spent the money to have a reputable shop do the work, and the mechanic asked me what I was going to do with the jeep before making his recommendation. Fyi, my jeep will be a Sunday toy, rolling on 36" TSL radials, to take to the malt shop, drive to family reunions, etc. I figured it's 20 years old, it's done its duty. I'm building it to run well on-road and off, but if I were ever to do to it what I did to it in its formative years, I'd be very worried about the rear end. Having said that, sometimes I wonder about the current bigger-is-better philosophy with respect to jeeping, especially when I thumb through the magazines and see guys running big blocks and rockwells with 40"-plus tires. I have to wonder how much time they spend wrenching vs. how much time they spend enjoying the ride. My stock, open-diff D35 with 3.05:1 (I think) gears has lasted all this time on 33"s just fine. Just my .02.
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Unread 06-12-2013, 08:30 PM   #14
dillonjm
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Quote:
Originally Posted by britrider View Post
Can't speak to experience yet as I'm still building, but I re-used my stock D35 rear with a Yukon Grizzly in conjunction with 4.56:1 gears, at the recommendation of the axle shop I used. Setting up gearsets is a precision business which is why I spent the money to have a reputable shop do the work, and the mechanic asked me what I was going to do with the jeep before making his recommendation. Fyi, my jeep will be a Sunday toy, rolling on 36" TSL radials, to take to the malt shop, drive to family reunions, etc. I figured it's 20 years old, it's done its duty. I'm building it to run well on-road and off, but if I were ever to do to it what I did to it in its formative years, I'd be very worried about the rear end. Having said that, sometimes I wonder about the current bigger-is-better philosophy with respect to jeeping, especially when I thumb through the magazines and see guys running big blocks and rockwells with 40"-plus tires. I have to wonder how much time they spend wrenching vs. how much time they spend enjoying the ride. My stock, open-diff D35 with 3.05:1 (I think) gears has lasted all this time on 33"s just fine. Just my .02.
Good luck, I hope it holds up for you.
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Unread 06-12-2013, 08:47 PM   #15
Pawjob
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Quote:
Originally Posted by dillonjm View Post
Good luck, I hope it holds up for you.
Second that...my D35 on my ZJ with 35's isnt doing good and will be replaced soon with an 8.8
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