The 1947 - Present Chevrolet & GMC Truck Message Board Network - 1966 C10 rear axle code ZN. Can anyone decode?

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- - 1966 C10 rear axle code ZN. Can anyone decode? (https://67-72chevytrucks.com/vboard/showthread.php?t=860860)

cgrocen

09-22-2025 11:39 PM

1966 C10 rear axle code ZN. Can anyone decode?

I just bought a 1966 C10 V8 Powerglide truck. The rear axle has the following stamped into the axle tube on the passenger side front. ZN 1 ZNN? 7 M. I cannot find any reference to a ZN rear axle code. This truck was made in Canada, but I believe US and Canadian axle codes were the same. Can anyone decode this? See photo. Thanks!

https://i.postimg.cc/zvgjy6C8/f60cbd...37904d63cc.jpg

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