Odds are you might go up to 14.

 

better than 12 lol i think i got about 9 or 10 last time cause i had a truck load of wood lol

 

Yep that would do it. I got 13 loaded and 14 half loaded on the high way.

 

so it sounds like i need to be doin some gear swapping here pretty soon. thatll run me lol

 

I have 30" tires and 3.55 gears.

 

35s have a lil more rubber lol

 

Just a bit.

 

4.56 with 35's will pretty much be the closest to bringing the final gear ratios back to stock.(if your going to go bigger on tires go with the 4.88's).... I have 4.56's and I can tell you its a blast to drive! at 70 your doing about 2100 rpm....vs 1800 with 3.92 gears.(your may be 3:55'swhich is even lower)...when your driving around 55-60mph with your current setup your rpm's are too low to maintain enough power to stay in overdrive and it will shift back and forth more often putting more wear on the tranny.... At least that what I've read eslwhere from others who had that setup and it makes sense....
I cant speak for many ram since I bought it this way but I can say when i upgraded my jeep from 4.10 gears to 4.56's with the 32 inch tires it made a huge improvement in power and gas and I got the use of my fifth gear back....(plus it even corrected my speedometer)

 

where does it say on those kits u posted the link to that they were for front and back? do the 4x4s have dana 44s in front and rear? or just the front? im considering buying some gears here soon but i want to make sure im buying the right things

 

Dana 44 front, Corporate (dodge) 9.25" rear for all 1500 Rams.