I was Hoping by the Vin numbers that someone could tell me what automatic transmission I have?? I would Love for it to be the Allison but i know im NOT that lucky...My Vin numbers are....3D7KS29A876848987...I just bought this truck last night and its My First diesel ever..Its a 2007 dodge Ram 2500 4x4 6.7 diesel Larimie trim Mega Cab with 57000 miles on it......It has an 8 inch lift with power retractable steps and CHROME Pro Comp 22 inch rims wrapped in Open Country Toto tires....I want to put the Longest wearing tire available on this 3/4 ton as I drive on the Hiway 99 % of the time..Im My days (Im 60 now) RVTs lasted 4 ever on the Hard road but i cant get RVTs in 22 inch size????
As far as engine mods I beleive its All stock and everything exhaust wise isc all stock??? I dont know what to look for to tell the difference??? Other than a Lioft Kit i beleive shes all stock...What can i buy to Help IMPROVE the Fuel milage???
Help me learn as fast as an Ole Fart can about what i have and what i can Do since im NEW to this Diesel thing...Plus I tried to add Photos to My garage of My truck but everytime I clicked ADD Photo???? all it did was make 5 more albums with NO pictures in any album??? Why arent my photos UPLOADING????
thank you All for your Help in advance & SEMPER-FI

 

68RFE I believe

 

Stock only GM's come with Allison's.

 

I did a quick search and yes the 68RFE is what you should have, Dodge started using them in 2007 in 2500s with 6.7 diesels

 

As for better MPGs if you don't want it then take off the lift kit. And then do a DPF delete and get a tuner

 

what is a DPF Delete??? and a tuner I think you are talking about a PROGRAMER???

 

Same thing. People call them different things. The only real wrong way to call a tuner or programmer is to call it a "chip". But here are some links. Google is your friend.

http://www.dpfdeletepros.com/cummins...FQhN4AodKhwN9w

This explains the DPF delete:
http://www.xtremediesel.com/DPFOff-R...7lcummins.aspx