I’ve got a ‘80 F600 and ‘88 F700 that I’d like to install some sort of suspension seats in. F700 has air brakes so probbly air ride seat in that and mechanical suspension seat in the F600. I’ll do some looking in junkyards for OEM seats, but short of that what aftermarket options are out there? I assume I’ll need ‘low profile’ seats and I’d prefer mid-back height seats like would have come stock in these years. Also would like something that I could get a matching fixed passenger seat. Anyone done this swap from bench to suspension seats in one of these medium duty F-series trucks or C-series chevy?