2013 Sierra HD, is a gear change worth it?
Hi everyone, I'm new to this forum and have a question about my 2013 Sierra 2500 HD with a 6.0L and 3.73 gear ratio. It has a tow rating of 9400 lbs and in the manual it says if I had 4.10 it goes...
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My X with 4.30 gears will always run in 3rd at about 3100RPM. It will run in O/D at 2300 rpm on flat roads. I don't think you'll get what you want wirh the 4.10 swap.
