Hello
from my understanding.............
that march pulley is based off the 71 and newer power steering pump
assembly and pulley depths
making it about 3/4 of a belt width off for you
if your using a 67-70 power steering pump with a 67-70 pulley 6900 or 6901
and a 4.5 inch water pump on a 69 n newer timing cover and a 68-70 crank pulley 0842 or 0846
and running no ac
the 9127 is the correct pulley .... 6060 is firebird or short 4" waterpump
and also 68
ole pinion knows these well
we should probably hear from him also soon ........
Scott
goin by memory on pulley numbers but Im close ....and on the road
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