Rear Locker

[FastFocus]

ok guys i need some help. I've got an 07 FX4 and i'm looking to help the rear end a little bit. I have noticed that if the left rear tire goes off the pavement and gets in some dirt/mud in 2wd then it just spins and it will get stuck unless you engage 4wd. I want this to stop.

i'm looking for a good diff that will give 50-50 power to both rear wheels when needed, but isn't locked so the tires skip around turns. the truck also does a lot of towing so i need something that will not hurt those characteristics.

What are my options? thanks in advance!!!

[pickupman99]

arb air locker are perfect for that but are expensive, plus you'd need at least an air tank or compressor. or you could go with a detroit locker, they only lock up when 1 tire spins, supposed to be good around corners. thats what im gonna get when i get the money

[cartmanea]

I have a Detroit TruTrac, which is about the best, longest lasting (no clutches to wear out) limited slip you can get. Not sure if they have a version for the '05 and newer axles though since they have a higher spline count. ARB would be good, that way its completely open when you are towing.

[FastFocus]

i'll look into the detroit. Thanks!

as for the Air ARB, sound like it would be great but i'm not going to spend that much and go through the hassle of adding an air tank. thanks guys!

[07stroker]

A TruTrac is what i would get.

[mustangman02232]

+1 for the true trac

[05diesel60]

I haven't heard much about these, but what about electronic lockers???

[cartmanea]

Not available for the 10.5" rear in these trucks, but I plan to put one on my front Dana 60.

[FastFocus]

that was my next question, what rear end do we have? anyone know the best place to buy the Tru Trac?

Also, how do i find out what gears i have?

[pickupman99]

at 70 miles per hour what rpms are you pushing