I know another gear thread. This one may be a little different. I had 4.10's for the last year and had a whine that bugged me more and more every day. So I had 3.73's installed this week. My first impression is not bad. I was a little worried that I would lose that off the line grunt that the 4.10's give. It isn't quite as jumpy off the line but I haven't really gotten on it either. He said to take it a little easier for a tank of gas. I toyed around going 4.10's again but I think I will be happier with the 3.73's. Might not scare potential buyers away as much when it comes time to sell. On the other note about the whine... My first installer told me that whine was going to be normal, after ready up on quite of few post the argument went both ways. I can now say that the first installer was telling me what I wanted to hear. The new gears are very quite and the new installer said it shouldn't have any noise regardless the ratio. The one thing is my first gears were Motive and the new set is FRPP.
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'12 Grabber Blue V6 Premium/Pony pkg
4.10's, Steeda CAI, BBK 73mm TB, BBK ceramic shorties, Roush AB, Bama 91 tune, Eibach Pro springs, BMR panhard, BMR relo brackets, Ford Racing LCA's, Koni STR.T's