Well, researching insulation options, literally outside of the box. Insulating underneath the van floor. I want spray in bedliner for work use AND insulation. Talk about having my cake and eating it too! I got some ceramic bead additive to add to the bedliner to have an effect similar to "lizard skin" , but looks more like snake oil, lol. I have foam boards which I am going to cut to fit underneath while I have the transmission, fuel tanks and driveshafts out of the way. Half of the floor ribs would be a perfect shelf for 1.5-2" rock wool boards!! Fire resistant, good noise control and R value, moisture wicking and breathable.. Perfect, except im ready to get the transmission and fuel tanks back in while my family is out of town and can't find anywhere locally that has it stocked! So Im going with 3/4" foam and foil insulation boards, and the fake dynamat flashing tape since it will be outside of the cabin (if its not 100% butyl and stinks). May can foam some of the closed ribs in the center, closed cell foam, and leave the outside areas and body mounts open for drainage.. pictures later.. insulation as well as swapping the quigley parts to a used 2wd E40D transmission to get it up and going again. If this one messes up soon-ish I'll look into a locally built
or monster transmission.