I purchased a set of seat covers from LMC for my '76 F-150.

They fit perfectly and look great. Pleated red vinyl. $129.

If you aren't looking for something that's identical to factory, $179 for the AD, I think.

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)