I also used the friends & Neighbors approach, on my 1954 3604, no fenders and no tailgate (obviously?) We "staged" the bed using four corner "posts" made by stacking 4 concrete blocks on top of each other and then two 2x4's one each across each "end". Gently rolled the truck under the bed , four guys lifted the bed and I removed the 2x4's and they let the bed down slowly onto the frame. I used a combination of drifts and screwdrivers to align the mounting holes to the frame and the rubber mounting pads. Went very smoothly, but I was very nervous.......

Ron - - Dusty53
1954 Chevy 3604
In the Gallery Forum
"You can't dance with the Devil and then wonder why you're still in Hell."
"They will forget what you've said, and they will forget what you have done but they will never forget the way you made them feel."