I've been searching for prices on gears and it seems that the 4.10's price $60-$70 more than any other ratio. Even 4.56's and 4.30's are generally $60.00 less. I'm just trying to decide if the 4.10's are worth the extra money over 3.73's. Looking at Ford Racing gears specifically. There are no plans for a power adder on this car, just simple bolt on's. For daily driver use and an occasional trip to the track, will 3.73's be a better choice than 4.10's? I think 4.30's are a bit much. $60.00 isn't much, but I plan on upgrading the diff and axles, so it adds up pretty quick.