ARB Front Lockers vrs. Atrac ?

[rfjtoy]

What is the advantage with the front lockers?
Will the ATrac have to be disabled?
Is this mod worth the $.

My Atrac worked well on Lockwood Creek yesterday, but there was some tire spin on the steep rocks? could have been driver error?

 

[FirstToy]

here is a perfect link from 80's tech faq. It will tell you all about lockers
https://forum.ih8mud.com/showpost.php?p=1012338&postcount=4

Think of ATRAC as completely independent system. It uses your ABS brake sensors to detect differential wheelspin. If you are locked, both wheels spin at the same rate= no differential wheelspin, thus ATRAC will not engage.

ARB's will not interfere or conflict w/ the ATRAC.

 

[rfjtoy]

Thanks.

 

[FirstToy]

I re-read your orig post. I guess I didnt answer your question tho, hehe.
ATRAC is not a locker, it is basically a LSD using your brakes just as they would if you slammed on the brake pedal. It pulses the brakes so you maintain traction- it just activates on the go pedal instead of brake. Very ingenious and brilliantly simple.

However, it doesn't "lock" the diff so you will still slip.

 

[SurfPonto]

I think after reading post https://forum.ih8mud.com/showthread.php?t=104663 I may use A-Trac more than the rear locker now.

 

[FirstToy]

SurfPonto, more than a few of those occured w/o the locker turned on. Still a big ? as to what is going on w/ the OEM locked rr diff...

 

[SurfPonto]

SurfPonto, more than a few of those occured w/o the locker turned on. Still a big ? as to what is going on w/ the OEM locked rr diff...

Guess I should have read it more closely. Hopefully if it is a common issue Toyota will step up to the plate and take care of it.

 

[powderpig]

Currently the A-trac is turned off when you engage the rear locker. The future holds that the front will stay turned on when the rear locker is engaged. Just like the pre-production one that wheeled the Rubicon last year. So locked rear, simulated LSD in the front. later robbie

 

[GXO]

FWIW I have driven locked trucks for years and the FJC with just the ATRAC (no lockers engaged at all) and could go places I would wander side to side with the locker.

I would run ATRAC all day on the trail and never touch the locker button unless there was a specific line that warranted it.

 

[TexasBadlands]

I agree with Dan, the ATRAC is an awesome feature. I have been using it with my Land Rover (LRs is called electronic traction control - etc) for several years now and it is very impressive. There are only certain situations where I would see a locker being the advantage.