The 4.56's do great. The rpms are a little higher on the interstate, but nothing to be worried about.
lol ok! do you like its power? does your RPM go higher than you like?
Thanks! Not real sure what my mpg is with my 4.56's. I do not have the DIC mod and have never really calculated it.
Hey! Great lookin truck!!! How is your mpg with the 5.46s??