I think this might spark another debate.... But I put 4.10's in my 95 GT..... And to be honest I love em. BUT, this all depends on what you like. Many people go 3.73's because the stock t-5 tranny has a horrible overdrive so with 4.10's on the freeway, going 80, your at about 3000 RPM's. Now as for gas mileage, you might see a 1 MPG difference... maybe. What I do know is 4.10's bite hard, and perhaps may be too hard if you are going to throw a lot of power into your ride. I saved my set of 3.55's in case I get blown and hit some more power. But anyway, long story short, 3.73 great gear, 4.10's great gear if you arnt thinkin of huge power yet. Oh and dont forget about Motive's 3.90's.