Got my 4.30's!!!!
What level is it on? My truck on 35's with stock tune ran just fine and then on the SCMT on HP it really ran well.
If didn't pull the amount of weight that I do I would have kept the 3.73's, sometimes (like every weekend when I am not working) I pull around 18,000 pounds (26,000 including the truck).
The 4.30's with 37-38 inch tire diameter is for diesel only. The gasmotored trucks
need every bit of 56's or 88's, especially if you are towing any weight at all. TTSupra, my personal truck is an '03 6.0 with 38x15.50x18's, and I geared it before I did any performance mods to the drivetrain, it made all the diff (no pun intended) in the world. Made the truck fun to drive again. (although I only drove it 1000 miles with the 73's)
have a great day!
Tim



