I posted this to an older thread but didn't get any responses.

I have an '18 2500 with 3.42 gears, 5" lift with 37x13.5" tires on 20s. The truck drives fine in my opinion but i was wondering how different things would be if changed to 4.10---4.56 gears.

1) How much better would the truck feel driving it? Off the start and passing someone?

2) How much would my MPG go down? Currently im 19-20 (Some good info: Stock truck was around 20. Added DRD 60hp tune with deletes and it went up to around 23. Added 5" lift with 37" tires and where im at now)

3) Is it harming my trans with the lower gears? I don't tow much and only under 5k.

Thanks for any replies!!