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Old 01-15-2017, 10:15 PM
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I'm locked out ! Help

Looking for an inexpensive locker for my 99 tj Sahara, front is a Dana 30 rear is a Dana 35. I thinking maybe an Aussie locker for the front and possibly a Detroit for the rear. Any thoughts onsimilar setups . Wanna keep it as street friendly as possible. We do mostly mild trail rides with moderate mud Boggs.

In the process of installing a zone off-road 4.25 combo lift.and I'm running 33" tires.

Thanks in advance for your help and advice.

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Old 01-16-2017, 01:53 AM   #2
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Hey there!

The Aussie is a great option for the D30. While in 2WD is isn't engaged so it acts just like an open differential (except for some ratcheting sounds when turning at full lock). For the rear you do have some things to decide on. The D35 is not the strongest axle... If you have aspirations of some pretty hardcore wheeling you would be better off investing in a D44 or Ford 8.8 swap. You can upgrade the D35 with a Detroit auto locker and some 30 spline shafts which will strengthen it substantially. Most say that upgrade will make it about as strong as a stock D44. The issue with dumping that much money into a D35 is that it's still a D35... so if you go to upgrade you won't get much back for the axle.

If you have a manual transmission or you frequently encounter ice I would not suggest an auto locker. With manual transmissions it will unlock every time you engage the clutch, and then lock when you disengage it. That makes for one jerky ride. When on ice it could make the tail end want to whip around easily.

What I am going with in my Jeep is an Aussie in the front and a Detroit Truetrac limited slip in the D35. It seems to be the most cost effective solution for me that will add strength and capability without breaking the bank.

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2005 Jeep Wrangler X
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Old 01-16-2017, 09:20 AM
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Thanks T.Wagner,

I have an auto transmission in mine, I'll check into the Detroit Truetrac for the rear.

99 jeep Sahara
Auto/4.0L
33"s 4.25 zone combo lift
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Old 01-16-2017, 10:32 AM   #4
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My son has been running a detroit trutrac in his d35 rear axle and an aussie in his front d30 for years. It amazes me every time we off road together how well it does. I spent a lot of $'s for a pair of arb's, and it's very seldom that he can't get up anything that I can.....could be he's more skillful, but I would never tell him that....
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Old 01-16-2017, 11:13 AM   #5
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Quote:
Originally Posted by Weldonwheeler View Post
Thanks T.Wagner,

I have an auto transmission in mine, I'll check into the Detroit Truetrac for the rear.

99 jeep Sahara
Auto/4.0L
33"s 4.25 zone combo lift
With the auto transmission the Detroit locker is an option, but you must upgrade to 30 spline axle shafts if you do that. Again, if you encounter snow/ice I would recommend you skip on the locker and go with a TrueTrac instead.
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2005 Jeep Wrangler X
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31" KO2s and 2" BDS Lift
Front Aussie/Rear TrueTrac
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Old 01-16-2017, 12:33 PM   #6
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I just put a truetrac in my d35 with chromolly shafts and a regear, running 33's and couldn't be happier, the only thing I wish I did was put another truetrac in the front.
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4.88 Revolution Gears - Rear D35 Detroit TruTrac & Alloy Chromoly Shafts - 2" BDS Suspension Lift - 31x10.5R15 BFG A/T -
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Old 01-16-2017, 01:18 PM   #7
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Originally Posted by Tylerd.green93 View Post
I just put a truetrac in my d35 with chromolly shafts and a regear, running 33's and couldn't be happier, the only thing I wish I did was put another truetrac in the front.
Put an Aussie in the front....you'll love it and it will only take a few hours to do.
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Old 01-16-2017, 04:11 PM
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Ok thanks, while I'm in there what about gear sets, not exactly sure what I'm running now. Maybe 3:07 does that's sound right ?

99 Sahara
4.0 L auto 4.25 zone off-road
33"s
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Old 01-16-2017, 04:22 PM   #9
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Ok thanks, while I'm in there what about gear sets, not exactly sure what I'm running now. Maybe 3:07 does that's sound right ?

99 Sahara
4.0 L auto 4.25 zone off-road
33"s
If you need a regear and have never done it, it is not something you want to do. Setting up gears requires specialized tools and experience. Doing it wrong can be disasterous. Let a shop do it, and let them supply the parts so if something goes wrong, they can't blame it on the parts you supplied.

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