If im going 55 and my rpm's are at 1500, what is my gear ratio? i remember seeing the conversions on here somewhere showing at what spped and RPM your at to figure out what gears you have. Truck is a 04 Hemi 4x4 qc, just wondering what gears are in it. also, whats the easiest way to figure out if i have the tow pkg, i bought the truck used and will be towing a boat this summer.

 

take off the rear axle and count the teeth.

or you could just email chrysler and get a build sheet.

 

most trucks if you open up the glove box and at the very back has a sticker with this info. if not you can go to www.allpar.com and type you vin number in and get the info also

 

Also, in order to figure out your gear ratio based on speed and rpm, you also have to figure in the size of the tires, which need to be the stock size unless your computer has been calibrated for the new size. Check out this website once you have all your info:
http://www.4wheelparts.com/aux_incl/gear_ratio.html