Unless you are going all out on your car with Nitrous and slicks, you won’t need 3.55's get 3.73 or 4.10
Rule of thumb is automattics get 4:10's, 5-speed's get 3.73's (but thats a dumb rule if you ask me)
www.gefracing.com has the best prices.
When you get your t-lok, make sure to get...