I used the lumber though the cab method to remove the cab from the frame.
Since then I added a 2x2 steel tube and I can telescope my engine hoist. I built that to make the removal of the fiberglass Silverado bed cover a one man job with straps.
The extra length reaches lots more stuff but I need to be careful of weight limits.
1946 Chevy Half Ton ('56 235, '86 T5, '79 Camaro Z28 rear end, working on the '85 Jaguar XJ6 IFS)
1976 Margay Panther X, MC91B