yoke to transmission tail shaft clearance

[mrdetails]

What should the distance between the end of the tail shaft and the yoke be? I have a slight vibration which I thought was the drive shaft needing balancing. When I got ready to pulling the drive shaft, I noticed about 1 3/4" to 2" space. Is this to much. Turbo 400 application.
Thks. in advance
Sam

[JohnZ]

I'm accustomed to seeing 3/4" to 1" or so.

[dd442]

I have seen up too a 2 inch gap on the yoke and never had a problem. On 4speed and Auto. You should be fine, in fact when you get down on it, the yoke will go in farther into the tailshaft.

[z-villejw]

I run about a finger width. Check your pinion angle. shaft maybe running to straight, that will make it vibrate.

[mrdetails]

Thanks Guy's. Could someone tell me the correct length of the driveshaft for 69 Camaro w/turbo 400. I'm not sure what I have, it was in the car when I got it but it wasn't the original engine or trans. Their was also evidence that the drive shaft broke at one time (dented floor boards).
Thks.:
Sam