does anyone know whether, even with the right brackets, the passenger benches or solo seat can be installed in a cargo van? in the sprinter, the threaded holes in the van frame to which the brackets are attached are missing in the cargo vans -- so even if you cut through the floor to install the brackets, there's nothing to bolt them to. the passenger and cargo van frames are built differently. (the crew van frame is like the passenger frame, and has the required mount points.)
like the OP, i'm interested in adding (in my case) a two person bench to a cargo van. if it were feasible to add the OEM seats i might try that. but it might be easier to figure out how to securely mount airline-grade L-track, and then securely mount an OEM bench (possibly not from a transit) to that L-track. (picture a lot of hand-waving going on here.)
like the OP, i'm interested in adding (in my case) a two person bench to a cargo van. if it were feasible to add the OEM seats i might try that. but it might be easier to figure out how to securely mount airline-grade L-track, and then securely mount an OEM bench (possibly not from a transit) to that L-track. (picture a lot of hand-waving going on here.)