hello, I'm new to this site and could use some help. I have a 95 cobra and have had to put a new tranny in. I went with a 3550 due to budget constraints. I have also just put in a tokicko suspension kit. I was finally able to take the car out and noticed a vibration in the shifter and seat of pants above 60. I'm wondering if there is some conflict between the lowering kit and the driveshaft spacer that came with the 3550 kit. Thanks