Has anyone made a cab rotisserie so you could work on the bottom side?
Would love to see some pictures of what you guys came up with. Thanks

 

I have seen cabs laid on the back cab wall, say on rolling dollies and some blankets, so people can more easily work on the cab bottoms.
If you plan on doing a lot of welding you might need to ditch the blankets.
If the cabs are pretty stripped they are not that heavy, especially the reg cabs like the two you own.

 

I bought a replacement single cab that I rolled onto its back when I cleaned and sprayed the bottom side with undercoating. Very easily done.

 

ive seen pics of 2 2000lb engine stands fastened to either end of cab or frame with success

 

This is what my dad did with his charger restoration. worked out pretty good.