Looking at maybe an upgrade to GMC 2500 HD, just curious if anyone has the 342 gearing and what they think. It would be with gas. your experience if you please. I have a comparison of the 3:73 and 4:1...
There is no free lunch. The "extra umph" comes at the price of increased fuel consumption, lower mileage, worse fuel economy, however you want to say it.
The 4.10's make the engine rev higher at all times. Higher revs consume more fuel, but also produce more power when needed.
Sounds like 3.73 is the only option with the gas engine in 2021, so there's no question here.