My friend and I Have the same problems Seems like the first gear is way tall by that I mean our trucks (2001 & 2001) both 6.0L with 3.73 gears in the rear do not shift out until 40 + MPH. with a 1/2 ton you can go with smaller tires. Is this true with your truck? Your problem is most likely due to ...

My box had a nice sticker in it.....they must have listened.

Sounds great. I will give it a shot this weekend and see what happens. Thanks Mike!!

Holy Cow!!! Thanks for the new truck guys!! I honestly wasn't ready for that. I was cruising along a country road checking the speedo calibration with the GPS and decided to put my foot in it. Who would think a truck this size can actually "leap" out there at 65 mph?

Now, what adjustments can I ...

What effect on torque management does the 87 octane tune have?

Have a 2wd '01 GMC 2500HD w/6.0L. I daily drive this vehicle 140 miles a day and tow my race trailer with it every weekend. Intake and exhaust are the only mods. (oversize tires but I figured that one out)

What parameters will give me the best mix of performance and power? Any advice on settings? I ...