[joe.acton]

i AM NOT SURE WHICH i HAVE AND i AM LOOKING TO GET A SET OF 3:54 GEARS FOR MINE, BUT CAN'T ORDER WITHOUT KNOWING WHICH AXLE. iS IT THE DIAMETER OF THE RING GEAR?

 

[cerberusiam]

i AM NOT SURE WHICH i HAVE AND i AM LOOKING TO GET A SET OF 3:54 GEARS FOR MINE, BUT CAN'T ORDER WITHOUT KNOWING WHICH AXLE. iS IT THE DIAMETER OF THE RING GEAR?

Yes, the rear is 11.5 on all but the early 03 SO trucks, then its a 10.5.

 

[MATRIX]

Dang... 5 minutes too late.

Gassers came with a 10 1/2-inch AAM rear axle, while the diesel trucks come with a massive 11 1/2-inch AAM rear axle

American Axle Manufacturing's 11.5 rear axle in the '03-present Dodge Cummins trucks (and '01-present GM 3/4- and 1-tons) is a massive axle designed for high-torque towing abuse. AAM's 11 1/2-inch ring gear (left) dwarfs the classic Corporate 14-bolt's 10 1/2-incher (middle) and the Ford Sterling 10 1/2-incher (right).

:thumbsup: 11.5

 

[joe.acton]

Where is a good place to get different gear sets. I see a lot of places with 4:10, but can't find what I am looking for.

 

[cerberusiam]

Randy's Ring & Pinion. The Differential Experts. Auto Parts & Services.

 

[Dodgezilla]

3:42 is the highest you are gonna find as far as I know.

 

[MATRIX]

You currently have 36/15.5/20 on that beast, or the Ring and Pinon for another vehicle? I'm not sure what you're trying to accomplish...

BTW. Very Cool Rig you have there!

 

[Ram'n It]

You have a 11.5 HD 14 bolt. Nice truck. 3.73's are the best choice unless you tow alot. Check your glove box and it will tell you what gears you have.

 

[icem237]

Yeah i would not go higher in gear, unless 3.73. I with they had like a 3.92 or soemthing. Give my truck lil more down low when i have the 35's on.