Saw your ad in Diesel Power mag. Great to be on board and I hope to learn more about my new truck here. For instance, my owner's manual does not say what axle ratio I have. Where can I find it on the truck? Is it stamped on the diff cover?
Welcome! Since you just bought your 06, it should be on your window sticker, stock is 3:73 I think and 4:10 was an option.
It was sold used and the dealer chooses not to put those stickers on the windshields of its used trucks. This truck gets 23+mpg@65mph so I'm fairly sure it has the 3.73 gears. I don't believe the 4.10 will achieve those numbers. My other 3500 was an SRW, had the automatic and it got 21-22mpg@65mph. Can the Duramax and the Powerstroke equal those numbers? I ask because I truly don't know. My only Ford diesel was an '87 with the 6.9 and 4speed manual and I don't remember the mileage. I've never owned a GM vehicle of any kind. Thank you all for the welcome! waytogo
Welcome to Towrig! Your truck has 3.73 gears. 4.10's are not available with the G56 6 speed as the G56 suffers in the OD gearing department, and would be like having no OD at all.
call Dodge and talk to service and give them your full vin# and they will print your Build sheet and it will have all your Truck Info you could ever Want or nead. F/P and welcome to T/R.
