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

anyone know? ive been told both so i want to make sure before i buy the locker

 

E-locked = 8
all the rest 8.4
Lookign for gears I presume ...

 

no im looking a truetrac locker. puttin in gears next weekend and i want to do the locker at the same time so i dont have to pay install twice. ive seen truetrac on my buds f350 and it was awesome so thats wat i want on my truck. why does the e locker have a smaller diff?

 

so do i actually need to order a 8 inch locker?

 

thats the one i was looking at. should work right?

 

thanks man. this cleared up a lot of the confustion. i will be buying this locker right now!!! hell ya!

 

one more question...
is it a 30 spline or a 27 spline?


this is the one im planning on getting
http://www.jegs.com/i/Detroit Locker/357/913A541/10002/-1?CT=999

but i saw one that said 27 spline.

 

Diff is not smaller but Ring (as Ring and Pinion) is narrower on e-locked thus to make difference refereed to as 8" only.
BTW Truetrac is not a locker its a LSD. So are you sure thats what your friend had ?

 

o my bad i meant posi track. thats what he said he had. would that make more sense?

 

I think people call that posi track. one thing I would be carefull you have 09 which has VSC and ATRAC. I would call eaton if you can use it with those two. VSC and ATRAC work by applying brakes which means Truetrac is going to shift power to other side much more quickly and much more power then what open diff would do. You may want to check that, however I will be very interested when you do install and drive that. it could be a awesome configuration

 

I think VSC and ATRAC came standard on all 09+ trucks. I dont know I have 07 with none of that electronic gzmos

 

yea I have vsc and atrac. jegs said I can't do it then I called eaton and they said I was acting stupid so I haven't really got much help.any one kno if I Can do this or not

 

I know I am a broken record but I have set up rears before (my family owned a repair shop and now distributes Auto and Truck parts)... I could get a deep discount but I use East Coast Gear Supply 'cause that is pretty much what they eat, drink and sleep! Set one up wrong and you have lost any savings.

 

Who or what is jegs ??
You can definitely fit there but big question is if that will make those electronic traction controls crazy.
It could, but until there is somebody with truetrac and 09+ traction control we will not know for sure.
My biggest concern would be that all those electronics are not pressure sensitive and they just put pressure on the brakes until the spinning wheel stops moving then let go then press again. that would make truetrac shift between sides with brute force. Low speeds, low torque should not be a big deal but at highway speeds that could send you towards the wall pretty quickly.