9.25, I think thats it. Let me know how it goes.

 

thats waht im thinking....the 9.25 from what i have found has a cover like a octagon (stop sign) and thats what mine looks like so that should be it. Thanks!

 

first read other peoples posts before you post one more than not someone allready asked this question in the past but the first thing I would do is change gears its doing to to give you HP but you will think it did, go with 4.10 cause 4.56 is to much for your V6 you allready have cold air so go with new exaust and I chip if you want but everything I have read about them says it does not help your truck much. and you can also get a set of power wires air ram has some on his site if you go there. the only reason I know this is because I am helping my buddy with this 04 3.7L and your not going to get much power out of that truck if you want power go with a V8 like mine

And yeah it is 9.25 rear Diff

 

i have an 02 v6 with air intake kit it helps im thinking of getting the power wire but i also want to get the 4.10s gears but dontknow where to get them can anyone help

 

im new to this whole thing, but i need some help. ive looked at a lot of places and have been trying to find an intake and exhaust kit for my 06 ram 3.7 manual truck and cant really find anything. I noticed that a bunch of you were saying to change the gears, and I was wondering where you would get the gears and how hard that would be to install. Also if anyone knows the websites for the intake and exhaust.

 

YOU CAN BUY THESE GEARS ON EBAY........TYPE IN DODGE RAM 4.10 THERE IS YOUR RESULTS.....