^^ wow thats not bad at all, ive got the 3:92's and im at about that on the hwy at 70 as well, with 33's

 

Its perfect now. Before if I was cruising on the highway with the 3.55 the truck would have to downshift to try to pass somebody but now it accelerates so effortlessly. It just holds fifth on the freeway and keeps pulling. Defiantly the best mod I have done so far.

 

i didnt know they offered 3.92s in the 2500. or did you get those installed? i was always under the impression that 2500s came with either 3.73s or 4.10s. but then again, ive been known to be wrong on things quite frequently.

 

yea that seems a little high bc i have 392s and at 70 rpms are 1900-2000

 

Yep, somethings not right. My 3.92" with 33" tall 275/60R20's is at 2000rpm @ 70mph.