Originally Posted by BigB227
Have a 2003 mustang GT automatic, I'm going to be getting gears but I've heard so much talk back and forth between these two gears I'm wondering what's really the best for my car
Yes this is an on going discussion, I honestly think it comes down to preference. Since your car is Automatic I agree with the above statement, you may want to compare 4.10s & 4.30s. 4.10s only really become a "hassle" to some people because of how often you will be shifting.
If you were going to go with 3.73's I would recommend 4.10's. If you were leaning towards 4.10's, I may lean towards 4.30's!
I hope this helps a bit, let me know if I can be of any assistance in the future!