Rear Diff Gears?

How can I find out what rear diff gear ratio I have? I just bought the truck and the previous owner didn't know.

Thanks

 

If your looking at the sticker is it the bottom right number / letter code. And if so mine is B03A. What is the difference between 2 pinion open and 4 pinion open?

Thanks Chris4X4 for the fast reply

 

Thanks

 

I'm B06A. Looks like I'm gonna have to throw a locker in it maybe. You know to even out the mud distribution on both sides of the truck

 

So my truck is also B06A, 8inch diff, 2 pinion 3.91 gears. I am running 31 inch tires and will eventually go to 33 inch tires, I should go to 4.10 gears to keep it "Normal" on and off road?

 

oh yea, ARB Rear lockers also

 

And the front diff is the same ratio. They are a set, right? So I am looking at two sets of gears, one front and one rear. Come on economic stimulas package number two.......

 

ok getting a 2002 tacoma with 6'' lift and 315/75R16 tires it has stock gearing with a v-6 truck has 123,000 on it well im going to upgrade the gears to either 4;11 or 4;56 im going to tow jet skis and be on the highways just wanted to know what your thoughts were on the best i think 4;11s and if you guys know a good place what kind gears u want with and prices and kit neeeded to to do the installs ??? thanx im in south jersey near philly pa other question the guy @ the 4x4 shop not to change gears since the front diff is weak if i change the gears the pion will be smaller and when i put it in 4x4 it wilkl snap the ring gear ???????

 

ask this in the nj thread....

 

http://www.tacomaworld.com/forum/north-east/41121-nj-tacos.html

 

so this is what my code reads A04C. i have a 2011 V6 dc long bed. according to this code mine is 7.5 rg , 4:56 gears with a 2 pinion oem lsd. i didnt think the truck had lsd. does this sound right.

 

i should read things better.

 

Is there one for the 2nd gens? I also though I had the 4:56's. I know I have an actual LSD, I have the sport model.

 

Ok, I've been lookin around at a bunch of conflicting articles...do you believe that my A04C is truly a 7.5" 4.56 with LSD? Some say all V6 with auto are the same.

 

Only asking because I am about to order a 3rd from ECGS and really only want rear locker for now...so no regearing needed already having a 4.56 in the front would be hella convenient.

 

Pretty sure no 2nd gen had 4.56 from factory. V6 Auto should be 3.73 I think.