Well I know most people on here are moving to 4.10s or 4.56s but my truck came form the factory with a 4.10 and I'm thinking about moving to a 3.73 or maybe a 3.55. My driving right now is about 95/5 highway/city. I'm looking for better mileage. I've done quite a bit of business with 4WheelParts on my last truck and I thought about just taking it to them for the gear swap. All I need is the ring and pinion, right? Also will there be any changes to the speedo? I've done lifts and suspension before but never a gear swap so I'm just trying to make sure I have everything covered.

Thanks guys
Brandon