cost me lik 216 with tax... will hold up to the power i will be making shortly. now my only vibration is 73-78mph roughly but only does it when u give it gas. so its likely going to be the torque convertor. but no vibrations anymore and i peged it out and then some and no problems. its 3.5" diameter 14 gauge steel shaft.. stock was weak aluminum. steel one weighs about 4-5 lbs more. but thats good cause its stronger and heavier driveline components help your momentum for launching.

 

Where did you get that driveshaft at?

 

Haha, that's a good one

 

huh? more mass to rotate = not as much power to the ground

 

you should have gotten a aluminium one,,they make them 2x as strong as stock,,all you did was beef it up,and add weight...not what you do to go FAST,if thats what your looking for???????