1968 cab weight

[mygmctruck]

Well , I built a overhead support right against the outside garage doors , I used my 3500#
Winch attached to the over head support and lifted it off the frame.
The over head support is made out of a 2 x10 on edge bolted to 2 vertical 2x8 's attached to the door jam openings .
The winch is bolted to the 2x10 and I had a straight vertical lift . Based on the information about the vertical stress of a 2x8 & 2x10 I could lift about 800 #

So everything worked out great. Thanks everyone for your help.