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Old 12-09-2013, 10:05 PM   #1
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I know this horse is beaten to death

I need opinions and do and donts on gearing and lockers. Probably need to replace the rear. Want to do 4.88 or 5.13 with my 35s. Might as well lock the rear dunno what brands to trust.

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Old 12-09-2013, 11:25 PM   #2
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4.88 gears is what I'm gonna do on 35's.

Do you want a selectable or auto locker?

I'm thinking grizzly rear and something selectable in the front. Honesty will likely do the "American made".

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Old 12-10-2013, 02:11 AM   #3
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5:13's are probably overkill for 35's and ther known to be a little weak in the smaller axels like the 44. I think 4:88's would perfect for the 35's in a 44 and a Detroit in the rear always seemed like a good option in the rear cuz it's just a glorified LSD but that's just my 2 cents
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Old 12-10-2013, 07:16 AM   #4
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For a 4.0l if you never plan on going over 35s 4:88s is plenty of gear, will even be ok for 37s. Have to love the tractor like inline 6
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Old 12-10-2013, 07:17 AM   #5
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Locker, Detroit fits great for a mechanical locker. ARB for a selectable
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Old 12-10-2013, 07:17 AM   #6
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I did a lot of research when I re-geared and ended up with 4:88 because it makes the most sense with auto transmission and 35" tires. I also went with the Detroit full locker in the rear on my 8.8. There are 2 different types of Detroit so don't be confused. There is the Detroit full locker that locks both axles at 100% which is the old school time proven solid locker. And then there is the tru-trac which distributes power unevenly depending on the slipping need which more closely resembles a limited slip. I put one of these in my front axle. So far it seems to be working well but I still haven't completely tested it.
The rear it seems is ok with a solid non selectable locker but I have heard that it is somewhat of a pain in the snow but I haven't found that to be much of a problem. That being said as you know mine is not a DD.
Do your research and find what's going to work best for what you are ultimately looking for in YOUR build.
And for the record I love my 4:88 gears.
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Old 12-10-2013, 08:42 AM   #7
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Yeah I'm definitely considering the Detroit trutrac as I think it best suits my driving. Once the jeep is paid off I think ill fully lock it. I'll probably just put one in the rear to save on cost and just regear the front for now.
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Old 12-10-2013, 09:01 AM   #8
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Ed runs the Tru-Trac front and rear. you've seen his rig go where he points it. and Sean C also. He loves the set up. It is also cost effective.
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Old 12-10-2013, 09:10 AM   #9
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Sweet good to know Detroit is a reputable brand as they are having rebates from 30 to 50 bucks depending on how much you spend. J.e.e.p
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Old 12-10-2013, 09:10 AM   #10
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I have 4.56 in the rear of mine. Seems to work great in mine. The 4.56 was the closest gear ratio with 35's to stock gear ratio on mine. Drives down the highway just fine and can even use 5th gear. Mine is a 5 speed also. My speedo is also really close to perfect. It is off by 2 mph at 55 checked by police radar. No I wasn't speeding. I know a police man and asks him to check it for me. Now as for wheeling it does fine too. Does great in low range and seems to have plenty of power. The locker I have is an aussie locker. On slick roads it likes to push the front straight. Cornering is a challenge as it will also slide out on you. In my opinion I would go delectable or Lsd. Some Lsd can still be squirly in the corners. For me I would still go Detroit even though it will be squirly in the long run you will be ahead.
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Old 12-10-2013, 09:12 AM   #11
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And as always thanks guys for the input. You have no idea how appreciated it is.
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Old 12-10-2013, 09:23 AM   #12
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Also forgot to ask if when regearing will I need new axle shafts or anything else?
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Old 12-10-2013, 09:29 AM   #13
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your gonna want new bearing kits. Shafts should be OK unless they have been twisted or show some kind of damage.
You can get a master install kit that will have it all.
http://www.4wheelparts.com/Drivetrai...n=G%2f235-2033
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Old 12-10-2013, 09:39 AM   #14
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Cool I did see those kits.
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Old 12-10-2013, 09:57 AM   #15
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I think you are right on with 4.88's and just locking the rear for now. I won't lock my d30 until there are some cromos up front, but thats just me.

That gearing, a rear locker and 35" tires will get you anywhere you're comfortable going.
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Old 12-10-2013, 10:08 AM   #16
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Yeah if the front were a 44 I think I'd def lock it. Ill probably just toughen it up however I can.
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Old 12-10-2013, 10:29 AM   #17
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I locked D30 whn I got back from Jeeptober. I went Chromo axles then. was only locked in the back for the whole season. It worked fine most of the time
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Old 12-10-2013, 01:35 PM   #18
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Yeah money is tight so the front has to wait.
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Old 12-12-2013, 05:44 PM   #19
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Well there's my problem.

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Old 12-12-2013, 06:07 PM   #20
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Justin,

Are there other teeth damaged? Any idea what shape the pinion gear is in? Do you have chunks of metal in the bottom of the diff?

Terry
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Old 12-12-2013, 06:19 PM   #21
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I'll have to ask it's actually Kate who was at home messing with the jeep. Im in eagle til tomorrow.
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Old 12-12-2013, 06:21 PM   #22
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im pretty sure no other teeth were damaged
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Old 12-12-2013, 06:25 PM   #23
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She said there wasn't really any metal in the fluid.
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Old 12-12-2013, 06:38 PM   #24
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Also said that was the only gouge she could see.
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Old 12-12-2013, 08:02 PM   #25
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Something is in there that did that damage, you need to feel around in the bottom of the diff.
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Old 12-12-2013, 08:53 PM   #26
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Quote:
Originally Posted by tshields View Post
something is in there that did that damage, you need to feel around in the bottom of the diff.
x2
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Old 12-13-2013, 04:17 PM   #27
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Not a lot of people run them, and most people vote ARB for selectable, but I absolutely love my OX lockers. They're cable actuated. I've not had any issues, but even if you have a cable issue, you can screw their Drive-Away Locks right into the diff and engage/disengage there. I keep those in the Jeep just-in-case, though have not had to use them.

I won't go into the OX versus ARB debate because they're both great, and I would've been just as happy running ARB. If you're going to just lock the rear to begin, a selectable is nice if you can afford it.

BTW, before I did my axle swaps I used to run an auto-locker (Spartan) in just the front and was very pleased with its performance. It was < $250, easy-to-install, and worked great. You've definitely got options.
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Old 12-13-2013, 04:37 PM   #28
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Thanks for the info. I just don't want to have to start modifying the axle. I'd like to just put something in and drive away. Not have to install more buttons on the dash and everything else that comes with a full locker. Think I'm going to get the lsd and regear for now. If I'm that stuck that I need the full locker I'll just pull some cable. Thanks everyone.
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Old 12-13-2013, 04:56 PM   #29
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Sounds a lot like my plan. Just LSD the rear and use a selectable in the front for when ya need it.
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Old 12-13-2013, 05:03 PM   #30
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Yeah I just need to get the money because easter jeep safari is only 4 months away :-( haha

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