Quote:
Originally Posted by streetrodchev
Starting for the ‘60 model year, GM did the 4x4 in house on the 1/2 and 3/4 ton trucks.
Prior to ‘60 it was a NAPCO conversion.
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I stand corrected. The '58 and '59's looked factory to me, but I now see factory 4 X 4's didn't start till '60 as you have stated.