My Whirley Jig came with a video that showed how to put a full frame vehicle on the rotisserie. They sold some spacers to help with the job. You might try contacting them. I did contact them and bought the spacers from them. Video had long since been lost (I bought my whirley jig in '99). We discussed in general and I have a pretty good idea what to do but can always learn from what others have done.
'64 Sport Fury, 528 Hemi, FiTech EFI, 4-speed, 4.10 Dana 60
'57 Belvedere 2dr sedan, current project in process
'19 Cherokee Trail Hawk Elite
'03 Ram 2500 CTD HO, 6-speed 214,000 miles and still going strong
| 
