When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have a 97 gt auto with 3.73's but I am thinking of going to 4.10's myself. there is not much difference in the two as far as driving but the 4.10's perform better.
I have an '03 GT auto with a KB supercharger installed and 4.10 gears. It's very streetable if you stay out of the throttle and a big bunch of fun if you don't. Go for 4.10's.