90/10's on a RCLB that looks like a 2500? Man, the LB might give you more leverage. Seems like you should be sub-2.0 60' with your set-up even though you're getting good overall numbers.
Dude, my truck is a 1500. It weighs 4690 with me and a 1/4 tank of gas. You keep saying it is a 2500. It guess the pic of my truck looks weird.