No they are little coil springs, five in all one fits on top of each set of pins, so there are two pins and a spring in each opening... I think the wire springs you mention are probably in the column??? If so those just keep the tumbler(lock) from wobbling in the column... They say a pict is worth a 1000 words, I'll shoot a couple tomorrow and post them...
uh,oh I forgot to shoot the pict... This is for a '71, is same as '72 and should be same as '70, dunno about later...