is a 09 tacoma rear diff a 8" or a 8.4"?

VSC/TRAC are standard on the 2009+ Tacomas. But A-TRAC is not. Active Traction Control or A-TRAC is only available on the Off-Road model trucks.

I know... Similar names.

Fixed it for you.

 

The wiring may be there - I thought I saw a thread on that. Think about it - It is just software burned on some chip in the Anti-Lock brake computer.

 

For anyone that may be interested. If you alter the geometry of your suspension such that you require a front end alignment adjustment, then you should have the VSC recalibrated. The dealer can do this service for you, or I believe you can do it yourself. There are two steps to complete the process:

1. Clearing zero point calibration data.
2. Yaw rate sensor and deceleration sensor zero point calibration

Here is the procedure.

​

Because the OP is running 37" tires, he would want to have this service done.

 

Unfortunately there are hardware differences. The 2009+ Off-Road models have a hydraulic brake booster, whereas non-off road (Sport /SR5) models have a vacuum brake booster. The wiring diagrams are also very different as are the modular plugs for the various ECU's.

It is presumed that A-TRAC requires much more hydraulic pressure thus the change in hardware.

If you or anyone else is interested I be glad to share any technical diagrams I have on the subject. (PM me).

 

Bravo! I like to see a man that knows his shit. Me? I pretty much talk out my ass!

 

Thanks. FWIW, I do hold you in high regards. How many people around here have done a solo job regearing both front and rear diffs? That is totally awesome and way beyond my experience.

 

Well, if you ever need my help. It is yours for the asking.

I've said it before, but your contribution to this social experiment we call "Tacoma World" is outstanding! Keep it up! Me as well as many others are thankful!

 

Either way he needs to probably be very careful with that. Would be nice to know if truetrac works and how it works with electronic traction controls. I am subbed to this thread so hopefully we will know.

 

All 09+ have VSC. ATRAC is only on TRD Offroad trucks.

 

darn still no verdic on wether or not this will work.... anyone know who i could call to find out whether it will work or not???

 

Ok, i just know not to buy 09+ Tacomas.

 

I just read up on Trutrac. Am I correct in believing it's a drop in differential made by Eaton?

 

already called eaton and all they told me is we dont make an application for the 2nd gen tacoma. i told him im matching the axle and he told me i could not do it. im still not convinced that i cannot do this. but im trying to figure out who to call. ghost busters maybe?

 

ya blacktaco21 used it but im just worries about vsc. is there anyway i can get rid of the vsc?