As Tony says, 3.73 was standard, rare but optional was 4.10(usually behind 3 spd O/D) & the economy option w/3.07. Brian


My \'64\'s in the Gallery
Pictures in my Photobucket
1964 C10 Custom Cab 350/700R4
1964 Suburban 350/700R4
1979 Ford F350 4x4 400/c6