I can tighten them up with the car still on the jack stands.

Yes, with Poly gragh's you can.

Originally posted by oregonchevelle:
I can tighten them up with the car still on the jack stands. Yes, you've lubed them up properly with the tube of snot they gave you correct? If so they will turn inside the shell and around the center sleeve. If you're concerned then drop it first then tighten, I know that's a little harder but not that much.

Oops! late again, I was interrupted while typing.