[Steel Horse Cowboy]

Originally Posted by allan5oh

Try starting off in the granny gear. Feather it more.

Haha, I did. That was me starting off in 5th gear on a 10spd trans

[Steel Horse Cowboy]

Originally Posted by tracer

Now I get it. I had the same thing after I had my CAT dyno-tuned and had 3.73 axle ratio coupled with 295 low profile tires. I would cruise at 58 MPH and I had so much torque at the wheels that going uphill in Texas I remember feeling the truck's drives going sideways! After I changed the axle ratio to 3.42 all became normal. Instead of reducing the horse power I think you should do something about your rear ends: your RPM will go down, the torque at the wheels will go down and you'll save on fuel.

I want to swap to 3.55 rears, but the mpg isn't a big deal. I'm already getting close to 9 right now with the 3.90 I have now, I just cruise at 60mph