Lockers or a Transfer Case gears? - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 01-10-2014, 03:52 AM   #1
Join Date: Jun 2013
Location: Utah
Posts: 6
Toren is on a distinguished road
Lockers or a Transfer Case gears?

So I'm wanting to put in some lockers on my Jeep wrangler 03 tj. ( sport) It has a dana 30 front and 44 rear, axles are geared to 4.88 and running 35's with 12.50 rims. I use my vehicle as a DD but go down to Moab for a lot of events. My main concern is I don't want to put work into my front axle cause I heard a dana 30 with 35's and being geared wont hold up a locker, but at the same time I've heard the only difference between the Dana 30 and 44 is just the axle shaft. the U joints and everything are the same? But I haven't looked into it much, so some people say a dana 30 deserves more credit and can hold 35's and a locker. So for now I want to just put one in the rear. I'm looking at doing a Detroit locker,or an Aussie, but that's gonna be engaged the whole time?. Also another thing, what would be a better option, lockers or a transfer case gear, do a 4-1 crawl case. I've seen people in my group go up things just fine cause they have a transfer case gear and no lockers. So I guess two questions here, lockers for the rear for a DD. Or just do a transfer case gear 4-1? Thanks for the help! I do live in Utah so we get a lot of snow, so having a locker in the rear would be a little hard to drive with, could use the help.
Toren is offline   Quote
Old 01-10-2014, 07:35 AM   #2
Big Cole's Avatar
Join Date: Jan 2012
Location: Thousand Oaks
Posts: 2,046
Big Cole is on a distinguished road
Go with a rear detroit locker. I used detroits in two of my rigs and love them. I plan to replace the TrueTrac in my current rig in favor of a detroit locker. You could also install a set of 27 spline chromoly axle shafts in the D30 when you install a front locker. I run 35s with 4.88s, aussie locker, and stock axle shafts but am upgrading to ten factory shafts next month.

Big Cole is offline   Quote
Old 01-12-2014, 05:30 AM   #3
Join Date: Sep 2011
Posts: 273
smccollamjr is on a distinguished road
I think a locker would get you farther down the trail than a lowered gear t-case.
'00 TJ/4.0/NV3550/D30(Aussie)/D44(LSD)/3.73s/1"MML/1.25"BL/UCF TT
smccollamjr is offline   Quote
Old 01-12-2014, 09:24 AM   #4
harryhood's Avatar
Join Date: Jul 2013
Posts: 386
harryhood is on a distinguished road
if you really want to beef up the 30 go with a locker and 30 spline chromoly axle shafts
harryhood is offline   Quote
Old 01-12-2014, 09:58 AM   #5
OmniscientHiers's Avatar
Join Date: Apr 2013
Location: Florence, AZ
Posts: 487
OmniscientHiers is on a distinguished road
Swap out for an HPD30. Imped has run his on 37s for a long time without issues. It really doesn't get the credit it deserves. If you go for a locker put it in the rear.
OmniscientHiers is offline   Quote
Old 01-12-2014, 12:03 PM   #6
Knows a couple things...

WF Supporting Member
Jerry Bransford's Avatar
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 42,236
Jerry Bransford is on a distinguished road
Yes indeed, a Detroit Locker in your rear axle would be an absolutely great upgrade. I ran my rear Detroit Locker for 120k miles before that Jeep got stolen & I loved it. I loved my Detroit Locker, it was a simple, bulletproof, and uber-reliable locker that is the best behaved automatic locker out there. Just take it easy on Utah's icy roads & you'll be fine with it.

I also ran a locked front Dana 30 for 100k miles with 35's. I did finally break a front axle shaft on an extremely/crazy-difficult rock crawling trail (look up "Sledgehammer" in Johnson Valley where that happened) but a simple upgrade to hardened alloy 27 spline shafts was all that axle needed. It was fine after that.

A HP Dana 30 is nice to have in that it raises the front driveshaft up a couple inches but strength-wise, the standard Dana 30 is fine up to the 35" tire size. Though, again, upgrading its 27 spline carbon steel shafts to hardened alloy shafts is recommended if you're doing difficult trails. You'd need to do the same thing with a HP Dana 30 if you ever went that route.
When you have a choice, buy American.
Jerry Bransford is offline   Quote
Old 01-14-2014, 02:34 AM   #7
Join Date: Jun 2013
Location: Utah
Posts: 6
Toren is on a distinguished road
I was talking to my neighbor who build's Jeeps for fun, and he was telling me to go with a Transfer case gear over a locker, cause of living in Utah and having a locked locker is just asking for an accident. Unless I do a manual locker It would be better to do a Transfer case gear change. I don't want to put a lot of work into my front 30 cause I fear that I'll break it and waste everything I put into it ( more of just break it a lot) is it worth to just wait and try to put in a 44 or try to build the 30 stronger. My neighbor was telling me to look a lock right for the front, cause I don't drive my jeep in 4high unless the roads are bad, which is a lot, so that's why having the rear locked would be bad he said. I don't want to pay someone either to put in lockers too, just got my axle gears done and that was expensive stuff. Would like the help and input on this! Thanks!!!
Toren is offline   Quote
Old 01-14-2014, 02:42 AM   #8
Join Date: Jun 2013
Location: Utah
Posts: 6
Toren is on a distinguished road
Hey are you running that Aussie locker in the front or the rear?

Toren is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 10:19 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC
« Back

Enter your email address:

Delivered by FeedBurner