No F250's came with dual rear wheels until 1985.

The first year Ford offered a dual rear wheel Styleside pickup was 1980: F350's only until 1985.

Ford did not offer a Flareside Pickup with dual rear wheels.

The only way you could get a dual rear wheel F350 prior to 1980 was as a Cab & Chassis, or with a Flat Bed, Stake Bed, or 1953/66, as an Open Drive-Away.

351M/400: 1977/79 F100/350 // 1978/82 Bronco // 1980/82 F150/350 // 1980/82 Econoline.

351M's were also installed in some 1975/79 Passenger Cars.

400's: Some 1971/79 Passenger Cars.

The largest engine available in 1980/83 F100's was the 302 2V.

First year for 351W's in F150/350's and Bronco's: 1981. Econolines offered the 351W beginning in 1975.

ALL 1953/96 F250's, 1967/96 F350's have 8 lug wheels on a 6.50" bolt circle. 1953/66 F350's have 6 lug wheels on a 7.25" bolt circle.

ALL 1975/96 F150's have 5 lug wheels on a 5.50" bolt circle.

ALL 1953/79 F100's have 5 lug wheels on a 5.50" bolt circle.

Some 1980/83 F100's have 5 lug wheels on a 5.50" bolt circle. Some have 5 lug wheels on a 4.50" bolt circle.

The only Ford trucks to have 5 lug wheels on a 5.00" bolt circle were 1973/79 Ranchero's, but not all of them did.

Some 1973/79 Ranchero's have 5 lug wheels on a 4.50" bolt circle.

Hunter OK What are the first 3 digits of your trucks VIN?