Here's another tried and trusted method I use when restoring Corvette Chassis. The straps have flat hooks on the ends that grab the rocker pinch welds. The block and tackle is attached to a large I-beam that spans the shop ceiling. Larry
After almost dropping my body when i took it off using blocks and floor jack , I took some recommendations from some fellows here when I put it back on the frame I used the seat belt anchor points some 3/8 chain hooks bolted to anchor points and a 20 FT tow chain kept changing center hook until it was lifting equal with cherry picker through door opening doors not on body picked it up rolled frame underneath and lowered onto frame
Here is my 2 cents lots of buddies some beer to put back on frame repeat PS beer after work is done very important Alain