Re: Factory th400 transmission
I think the TH400 was introduced in model year 1964 for Cadillac and Buick, then the following year for Olds and Pontiac. I don't think the TH400s were used in trucks until the 1970s.
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1963 C-10: Deluxe-optioned cab, shortbed, fleetside
Pontiac 462 ci, Kauffman D-Port alum. heads
4L80E, narrowed sheetmetal Ford 9-inch
Tubular front and rear suspension
Custom 6-piston front disc and 4-piston rear disc brakes
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