Changing running gears
My 2005 GMC Sierra 1500 has the 5.3L (300hp) with 3.23 gears. I'm towing an 18' TT with a stated dry weight of 3215 pounds and I realize that this number is only a starting point for what I will be t...
Forum Discussion
MFL wrote:
Your previous truck, was 4x4, but you didn't say if this one is 2WD, or 4x4. If just 2WD, you definitely should change to 3.73 gearing. It should be less than 1K, if only rear change. I would not bother with 3.42 gears. IMO, it would not help enough, with a 4-speed.
Jerry
This one is 2WD, Jerry. I was told that it could cost anywhere from $1500 to $2500 for the gear change. I talked to a guy this afternoon at a family dinner (future family to be) that races cars and he's going to get me price on it. He said it's no big deal if you do it right. I think 3.73 would be my choice.
