Ford F-250 - 6th Gen (1973 to 1979)

The sixth-generation Ford F-Series was introduced for the 1973 model year. Known by enthusiasts as the "Dentside," the F...

The sixth-generation Ford F-Series was introduced for the 1973 model year. Known by enthusiasts as the "Dentside," the F-250 was based on the 3/4 ton chassis, whereas the F-150 was based on the 1/2 ton chassis. The F-250 was offered as a regular cab, a two-door Supercab, and a four-door Crew Cab with the option of a "Styleside" or "Flareside" bed in long or short bed configurations. Both beds and cabs could be optioned as a two-wheel drive or four-wheel drive platform. Engines offered were a six-cylinder 300cid, and five V8's throughout the years, 351cid, 360cid, 390cid, 400cid, and 460cid. Transmissions offered were automatic, three-speed, and, later, 4-speed, manual depending on engine and drivetrain. The enthusiast adopted model series name, "Highboy," was only sold as a 4x4 F-250 long bed in regular cab and Crew Cab configurations. The F-350 did not offer a 4X4 drivetrain until 1979, and the F-250 "Highboy" filled that void. Although the term "Highboy" was never used by Ford, the "Highboy" shared many components like the cab mounts, suspension, axles, and larger frame of the F-350. These trucks featured a divorced transfer case and Dana 24 axles and 4.10 gears. 4" lift blocks on the rear axle and larger front springs brought the truck to a ride height of approximately 3" higher than a 4X4 F-100/F-150 and 6" taller than a two-wheel drive F-250. All "Highboy" trucks had F26 and F28 in the Vehicle Identification Numbers. All models could be outfitted with any three available trim levels, including the entry-level Custom, mid-level Ranger, Camper Special, or top-of-the-line Ranger XLT and Ranger Lariat. The Camper Special trim was not offered for the F-250 "Highboy" due to rollover risk. For 1978, square headlights replaced the previous models' round ones on higher trim package models, such as Lariat and Ranger, and in 1979 became standard equipment. 1979 would also be the last year for Sixth Generation production, with the Seventh Generation F-Series replacing it.

Ford F-250 - 6th Gen (1973 to 1979)

Model years for Ford F-250 - 6th Gen (1973 to 1979)

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Lot 17502-PC: 1975 Ford F250

Lot 141321: 1978 Ford F-250 Custom Crew Cab 4×4 4-Speed

Lot 140906: 1974 Ford F-250 Ranger XLT Camper Special

Lot WWVA1406BD1: 1977 Ford F250 Highboy

Lot 140320: 1978 Ford F-250 Custom 4-Speed

Lot 140220: 1975 Ford F-250 Custom Highboy 4×4 4-Speed

Lot 1678806: 1978 Ford F-250 Ranger XLT Camper Special 4×4

Lot 139783: 1978 Ford F-250 Ranger XLT Supercab 4×4 4-Speed

Lot 139645: 1979 Ford F-250 Ranger Camper Special

Lot 139431: 1975 Ford F-250 4×4 6-Speed

Lot MHM39171: 1978 Ford F250 Ranger

Lot W121.1: 1977 Ford F250 Ranger XLT Pickup

Lot 138368: 1977 Ford F-250 Custom 4×4 4-Speed

Lot 137641: 1975 Ford F-250 Ranger Highboy 4×4 4-Speed

Lot ST0001: 1975 Ford F250

Lot TH0262: 1974 Ford F250

Lot LCC17041: 1975 Ford F250 Highboy

Lot 136720: 1979 Ford F-250 Custom Crew Cab 4×4 4-Speed

Lot 135944: 1977 Ford F-250 Ranger XLT Supercab 4×4

Lot CTP43181: 1973 Ford F250 Highboy

Lot 135859: 1974 Ford F-250 Custom Crew Cab 4×4

Lot 135693: 1978 Ford F-250 Ranger Lariat Trailer Special 4×4

Lot SNCC7022: 1978 Ford F-250 4X4 Pickup

Lot 135164: 1974 Ford F-250 Crew Cab 4×4

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