Ok so I have a 90 2+2 NA AT with a TT AT. I replaced my center driveshaft bearing and it is still vibrating as bad as if I didn't replace it what should I do? I even tried unbolting it from the yoke and rebolt it but still the same. I don't really want to buy a 1 piece because I am planning on converting over to TT MT. I have thought about it though if I did buy a 1 piece could I just replace the yoke with a TT 1 instead when I convert then I would buy a 1 piece driveshaft. Thanks in advance.