As a little nose picker (am now a big one) I recall seeing lots of those Chevy pickup based suburban-ish panel delivery vans.....early 60's vintage with the wrap around windshield. This was in NYC and most of the TV repairman versions had wire mesh over the back windows to reduce theft......phone company used these too.

The eary 60's Chevy/GMC's and some I-H Travelalls came with torsion bar front suspension which was tanfastic....rode real smooth. No Carmine, Mopar was NOT first.....Packard was (1955) and their system was better than anyone's before or since as it acted upon all 4 wheels and automatically adjusted for load (height). Thought I'd twist that knife a little LOL

Anthony