- Dec 4, 2003
- 45
- 0
- 0
I just had my 3.90 gears put in......they suck. With 3.27's I could get the car sideways with slammin' 1-2 shift. Broke my 3.90's in, and ready for thrashing. Car wouldn't even chirp in the 1-2. T/C was OFF. It felt like it was slower, and track testing confirmed it was no faster. It's average 1/4 e.t.s and speed were the same. Fifth gear feels a little stronger, but 1 thru 4 feel crappy. The motor doesn't seem to rev as fast either....had the gears professionally installed, and was there assisting with tools and filling up rear end with oil. The damn Speedcal is all screwed up as well. DM couldn't help me, and it is there damn product! Speedo reads what it wants... it is pointing to 130mph, then 40, 60, 55, 10, then gets stuck on 20 after five minutes. I am going to go with a set of 4.30's. I am not expecting too much, but for the car to feel slower.....I don't know why. My '99 GT with 3.90's was an animal. My '03 GT is like a V-6.