Originally Posted by Murph4465
4.10 gears are made for racing and will ruin your MPG
False! Gears are the biggest bang for the buck holy cow I can really feel it mod you can do. The typical recommendation is 3.73 for manual 4.10 for auto. Also on a 98 stop throwing money at it until you do a PI swap. For the price of all your current mods, you could have more power with the updated heads.