i got an 06 lbz, 6sp allison with 6" lift and 35tires. what would be a good gear ratio and a good place to get them with a decent price i would like to invest in a limited slip front and a streetible locker rear. what ratio do you think and what is a good diff set up

Depending on what you do with the truck, your right on the border of needing the gears IMO. The 35's should be no problem to turn over with the stock configuration. 37's or bigger and I feel the regear would be more beneficial. Again, this is only my opinion.

As for the lockers, you will have to go with a selectable locking type diff in the front. Either an E locker or perhaps an air locker. Something you can unlock completely under normal use as you still need to be able to turn.

For the rear, look at the Torsen style unit, its an AAM piece that fits like a glove, originally intended for use in the newer Dodge Power Wagons with the same 11.5 AAM axle we use.

I've used that piece many times over and you dont know its there until you need it. No chattering around corners and it does not unlock when you dont expect it to.

Thanks for the info. it dont have any problem turnin the 35's i just think it help on the fuel millage. mostly i just want to upgrade the diffs. factory rear posi not bad but if your tryin to slide it around corners it dosnt it becomes a one tire fryer. but if im offroad just crawlin on rocks or cars or playn in snow its locked but just not the best on the road. my next thing i need to do is traction bars. with that lift (rear blocks) way to much axle rap.

Hey eric do you sell this Torsen style unit, AAM piece that fits like a glove ???
THANKS

I had mine done and the company that did my install, which is the only thing they do, recommended 4:10 for a 35" tire. They said that will bring you back to the factory level.

Depending on what you do with the truck, your right on the border of needing the gears IMO. The 35's should be no problem to turn over with the stock configuration. 37's or bigger and I feel the regear would be more beneficial. Again, this is only my opinion.

As for the lockers, you will have to go with a selectable locking type diff in the front. Either an E locker or perhaps an air locker. Something you can unlock completely under normal use as you still need to be able to turn.

For the rear, look at the Torsen style unit, its an AAM piece that fits like a glove, originally intended for use in the newer Dodge Power Wagons with the same 11.5 AAM axle we use.

I've used that piece many times over and you dont know its there until you need it. No chattering around corners and it does not unlock when you dont expect it to.


I've got that exact setup in my truck turning 35's and it works great! The Torsen unit is MUCH better than the GM unit that comes with the truck... much more predictable in sand, snow, mud, etc. I've also got an E-locker in the front that Eric put in for me that does wonders in bad situations. I've used it many times since it was installed for either getting myself out of a bad place or pulling someone else out. Two thumbs up for both the Torsen and the E-lcoker.

do they make an air locker for our trucks?