Hi, after reading your response, I decided to update my original posting, as I realized there were not enough pictures, or information in it. I will PM Skyhiranger, to see if maybe he can help me further, and thank you, I appreciate the information. Yes, lethargic is a very good word to describe it's performance. Sometimes I feel like a three legged turtle could blow right by me! Once up to speed however, it does just fine. As far as the gears go, I always thought that the ring gear would actually bigger in diameter on a taller gear, (assuming the pinion still had the same amount of teeth). The bigger gear would turn slower, causing a reduction in speed, and an increase in torque. Heck, I don't know any more, it has been a long time since I went to automotive school, plus, I'm getting old...50 now. I have called Calmini, and they could not help me, nor were they able to point me in the right direction....so, dead end there. Believe it or not, I actually picked up the X-90 for $450.00, just like it is now, minus the "big stereo, and big tires". As far as "Wheeling" with me, that sounds great, except, I see you are in Washington, and I am located in central Florida. We could not be geographicly too much further apart, so that is a bummer.