People swap out their 1962 and earlier front suspension because they gain independent front suspension, power steering and disc brakes and 5 lug rotors. It's also fairly inexpensive compared to buying individual components from the vendors like CPP and POL. The 1963 and up trucks already have IFS, so they only gain PS, disc brakes and 5 lug rotors. New 6 lug rotors are available in the aftermarket for those who want to keep six lugs but the original 3 bump 15" steel wheels do not work with disc brakes. [/quote]
I would say that 60-62 would be classified as IFS
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