Just purchased 2008 JK unlimited Sahara.
Installed 2.5" RK stock mod with Bilstein shocks along with 295/70-18 tires.

Was going to purchase ARB lockers for front and back... but price is getting really expensive for both plus compressor along with super 30 axle kit plus the 5.13 gears.

Just received build specs from Jeep:

BNBS Electronic Stability Control
BNMP Traction Control
BNSP Electronic Roll Mitigation
BPTP Hydraulic Assist Brake Booster
BRWS 4-Wheel Disc Brakes
DGV 4-Spd. Automatic VLP 42RLE Trans
DHES Man Shift-on-the-Fly Transfer Case
DJRS Next Gen. Dana 30 Solid Front Axle
DMEP 3.73 Rear Axle Ratio
DRZS Next Gen. Dana 44 HD Rear Axle
DSA Anti-Spin Differential Rear Axle

This is going to be mild to moderate off road use on some trails nothing extreme. I'm definitely going with 5.13 gears but wonder if I could just get by with a TrueTrac front LSD since it appears that I already have LSD in rear? Or should I go with 1 ARB locker up front or just rear? After reading all the posts on various sites, I'm more confused now than when I started! Just want to be more trail ready.

This is mostly a weekend vehicle / DD to and from the beach and bringing kids to school.

All help and advise is much appreciated

 

you'll be suprized by how well these perform. I would just do a gear swap and see how you like its you will be suprized!

 

At worse, if you really want a lockers get an Aussie locker up front. U can get one for about 300 bucks and do in your driveway. Huge difference on the trail. On the road you will hear some clicking on sharp turns. I have 35s on my Dana 30 with the Audie locker and do some major rockcrawling, no issues with front at all and still running stock axle shafts for past two years. If I'm not breaking it, I doubt you will.

 

What kind of locker is ausie? Selectable, LSD, air??

 

The Aussie is a lunchbox. They are auto-lockers, but are cheap versions of a detroit-style locker that fit inside the stock carrier. (where a detroit is a full unit that replaces the stock carrier).

Do a search on the truetracs. Lots of threads and feedback on them, and likely all you will ever need.

 

Is a true track the same thing that I have already in the rear?

 

Yes and No.

Yes, they are both limited slips. But No, the factory limited uses clutches, and clutches tend to wear out over time. (faster when you go offroad, slower if primarily street driven).

The truetrac uses gears, which perform better and do not wear out. It is an all-together better unit than the stock limited, but it will be a judgement call on your part whether to replace the factory unit in the rear, or just add a TT up front and keep the stock rear. Maybe take it in to a shop and have them check to see how well, or if, your stock limited is working before going further on a decision?

 

Sounds like I use my Jeep for the same type of stuff you do. I plan on getting a selectable rear locker some day. Can't decide if I want electric or air, though. Might go with air since I've already got the compressor installed. I think a front locker would be more useful for rock crawling. I figure a rear locker would be all I'd need for a little mud, some snow, and a few slick sections on a woodsy trail. Save my steering components from unnecessary wear and tear, too.

 

Sounds like Aussie in the front may work best for me? I live in Florida, NO SNOW , where maybe a truetrack would be better. Aussie is full automatic locker and only engage when in 4wd, so nothing while using as 2wd DD but will work great on the trail even when tire is off the ground and still spin tire that needs speed without worries of breaking something.

Does this sound accurate?