Have you verified what speedo drive gear is in it? I assumed mine had an 8t, I checked before I ordered one and ends up it has a 7t. Don't let anyone just tell you which gear to use, check everything out and get the right one the first time.
When i drive down the highway, i notice that a lot of people are passing me and it says i'm going 80. I have 3.55 gears in it now. I've got 245/50/16 in the back and i think 225/55/16 in the front. I have a tremec transmission, so on the steeda website it says Black 20 Speedo Gear would work. The hanlon website says 6T drive gears and 17T Driven gears. I guess i should just take it to my mechanic to find out. Any help would be appreciated though. Thanks.