with my superchips programmer, do i still need 4:10 gears with my 305/70R16 tires, or will the programmers tire re-calibration and shift point adjustments be enough...... im asking cuz a friend offered me 30$ more than what i paid for my precision 4:10 ring and pinion set, i havent installed it yet, so i figured if i dont need it, might as well take him up on his offer

 

All the tire recalibration can do is reprogram your ABS, speedo, and odometer. I'd definately keep the 4:10s!