Originally Posted by ol 55
1956 was the first year to purchase NAPCO 4WD as a factory option on Chevy and GMC trucks. Nice to see a historical photo from the assembly line that documents this.


Correct as long as it's understood that it was on a 1957 model year unit. All 1956 model year and back trucks had to be dealer/owner installed...

Mike B smile

Edit, I'm only talking about Chevrolet as I have no info on when GMC started offering factory NAPCO's...

Last edited by Mike B; 07/05/2025 5:05 AM.
Mike Boteler

1956 Chevy 3100 Resto Rod
1952 Willys M38 Army Jeep
1983 Jeep CJ7 Laredo
1984 Jeep CJ7
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Silver Spring, MD