GMC Motorhome Production Production of Motorhome Models by Model Year Model Year GMC Interiors Transmodes Total 23 foot 26 foot 23 foot 26 foot 1973 461 1,598 – – 2,059 1974 168 1,496 – – 1,664 1975 – 1,196 36 425 1,657 1976 – 2,413 549 298 3,260 1977 – 1,694 253 455 2,402 1978 – 689 178 1,012 1,879 Total 629 9,086 1,016 2,190 12,921 Source – GMCMI Newsletter, Fall 1982.Submitted by Zachary Zehnacker.
