I sold mine and went back to stock. Didn't notice a damn thing.
On a side note...4.10's are **** with a 5spd. you will love them for a day, then hate them after that.
WHY?
gas milage
1st gear is useless if ur making good power
1st-3rd are useless with 400RWHP (reason i got rid of mine)
you have to shift SO DAMN MUCH!!! and with a spec III clutch, your left leg gets big quick. If you have the stock one still it will still suck, but u will still be able to walk straight.
3.73's if ur not gunna add any power
-and-
3.55's if ur gunna go over 300RWHP
will give you the most pleasure per mile.
Just my 2 cents.