Quote Originally Posted by Trannyman95 View Post
If you truely have a 33 Drive and 37 Driven then your builder went in the wrong direction!!! This will give you a 3.69 overall ratio. The HD transmissions have a 37 Drive and 33 Driven, giving you a 2.93 overall ratio. The GT / NA 3800 cars had a 35 Drive and 35 Driven sprocket arrangement. Again, PLEASE check the current gear ratio on a scanner in 3rd gear, there is nothing more to talk about until you check that number unless your builder admits to putting in the wrong gears, which will be proven with a scanner.

Trannyman95. You were correct, my math was wrong. They did put in a 33 Drive and 37 Driver for a 3.69 overall ratio. The builder gave me the option of changing out the gears or putting in a new PCM from zzperformance. I went with the new PCM, because I kinda like having the stronger acceleration with the new gears. Everything is working perfectly now.