Well me and my dad finished installing my 3.73 gears WED. night. Install went pretty good, didnt even have to shim anything in the gears, just switch the 2 shims around (although they looked the same) on the side of the carrier(sp). Just as much slack (pretty tight, like an 1/8 inch of turn in the yoke) as stock...filled it with some Royal Purple and drove it to a gas station and NO noise. Didnt romp on it durring that drive, but it definatly isnt TOO low...and yes you can go with 4.10s, they wont be crazy low but they also wont be doing 1950-1975 @ 65MPH either. 
Every gear just sets itself up perfectly for the next one and it doesnt feel strained when changing gears. I love shifting at 3K+ now and usually do LOL.Well that next morning on my way to work I pulled out on the highway and nailed it from a rolling 15 or so....WHOOAAA man it pulls hard, ran it a little into 4th and I look down and its showing 85....I am so glad I didnt go 4.10s, it would have been to much when you nail it and seems like you wont get any pull out of 1st...W/ 3.73s every gear ends fast ENOUGH and keeps me right in my powerband. But let me state that YOU CAN GO 4.10s NO PROBLEM, THEY SHOULDNT BE TOO LOW, ESPECIALLY FOR A STOCK GT. I just like having some pull out in every gear and room to expand at the track before I need to hit 5th gear. 3rd gear ends at 85mph (5800) and according to a CAL. 4th ends at about 115 (5500). Funny I seem to be getting way better milage(even though I have been hammering it quite often), better or just as good as I used to when I babied it to work.Gears combined with the Chip (installed a few days before), the car almost scares you....especially when you nail it in 1st while rolling 10-15 (tires light up and since the low gearing start to hook after about a second or 2) then slam second and the tires keep spinning and you fishtail around and drift around and almost hit a curb with your rearend LOL....yea good times, OH AND LISTEN ALL YOU PEOPLE W/O GEARS AND A SHIFTER, I WAS ONCE A SCEPTIC LIKE YOU AND THOUGHT THE STOCK ITEMS WERE GREAT AND LOVED THEM, BUT NOW AFTER DOING THE MODS....I am going to say, LISTEN TO THESE GUYS, GEARS AND A SHIFTER ARE THE BEST MODS YOU CAN DO.
Every gear just sets itself up perfectly for the next one and it doesnt feel strained when changing gears. I love shifting at 3K+ now and usually do LOL.Well that next morning on my way to work I pulled out on the highway and nailed it from a rolling 15 or so....WHOOAAA man it pulls hard, ran it a little into 4th and I look down and its showing 85....I am so glad I didnt go 4.10s, it would have been to much when you nail it and seems like you wont get any pull out of 1st...W/ 3.73s every gear ends fast ENOUGH and keeps me right in my powerband. But let me state that YOU CAN GO 4.10s NO PROBLEM, THEY SHOULDNT BE TOO LOW, ESPECIALLY FOR A STOCK GT. I just like having some pull out in every gear and room to expand at the track before I need to hit 5th gear. 3rd gear ends at 85mph (5800) and according to a CAL. 4th ends at about 115 (5500). Funny I seem to be getting way better milage(even though I have been hammering it quite often), better or just as good as I used to when I babied it to work.Gears combined with the Chip (installed a few days before), the car almost scares you....especially when you nail it in 1st while rolling 10-15 (tires light up and since the low gearing start to hook after about a second or 2) then slam second and the tires keep spinning and you fishtail around and drift around and almost hit a curb with your rearend LOL....yea good times, OH AND LISTEN ALL YOU PEOPLE W/O GEARS AND A SHIFTER, I WAS ONCE A SCEPTIC LIKE YOU AND THOUGHT THE STOCK ITEMS WERE GREAT AND LOVED THEM, BUT NOW AFTER DOING THE MODS....I am going to say, LISTEN TO THESE GUYS, GEARS AND A SHIFTER ARE THE BEST MODS YOU CAN DO.
). just have to get in there and do it, not that hard.
