Bad vibes

Thanks for all your replies. Replaced u-joints and trans bushing. Checked al bolts to bellhousing, took it for a spin, no difference. Switched out the fan and boom, 95% better just a hair of vibration at high speed. Thanks Buddyroe. I would have never guessed that would vibrate that bad. So I double checked under the car and something didn't look right with the driveshaft. So I pulled it and noticed the u-joint caps were not aligned, or out of phase. I had a machine shop shorten this 10 yrs. ago. Last time I use them what a bunch of crap. And its not twisted because the rear joint is ahead of the front one. I would guess its of 10 to 15 degrees. So a new shaft and I should be good. Thanks again.