I cracked not one, but two motor mounts last week, and I just got my new ones in the mail today. I have the early '65 45 degree mounts. My question is: Can I simply remove the two nuts on the vertical mounts,(maybe the first two tranny mount screws as well) then jack the engine up using a 2X4 or some support across the oil pan? That would make it easy to remove and replace both mounts. I have used this technique to help install and remove the tranny, and the jack seemed to support the engine fine. Thanks for any and all info!