I am sure this is a simple question for most of you - have a 2007 dually, 6.7 cummins, quad cab

can find the weight capacities on my door ( payload,front and rear axles), but am trying to determine my Gcvw for towing a 5th wheel - it appears it varies significantly based on my gear ratio ?

I cannot find it listed anywhere on the truck - can anybody help me find it or,at least, tell me what the standard ratio is ( I have the original window sticker -no adjustments for gear ratio - assume I have the "standard").

Many thanks- out of my league here.

 

try looking in the glove box. there should be a sticker on the bottom that says what your ratio is...

 

thanks - I actually did try that - no sticker. I went on to dodge.com customer service and gave the VIN and asked the question - not expecting an answer in my lifetime, but may be surpised.

 

2500, 3500???? Here's a link that took 2 seconds on a google search http://www.dodge.com/en/2008/ram_250...owing_payload/

 

parts and service asked me for the last seven numbers of my vin, the first three had a letter and then 73 followed by four more numbers, this meant i had a 3.73 rear gear. i had mine changed to 4.10. i just checked my '09 wrangler, it was 3.23 stock, and the factory installed a 3.73 ratio, the vin stated that on the last seven numbers, a letter followed by 73 then followed by four more numbers.