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Click on image for the lowdown. 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Dec 2004 Posts: 1,897 Shop Shark | | Shop Shark Joined: Dec 2004 Posts: 1,897 | 1941 was the first year for the 6 lug open drive rear.
That probably won't help you much because it was only offered on the 3/4 tons. 1954 or 1955.1 generally are credited to be the first 1/2 tons with open drive. That same axle was used in 1/2 tons with minor changes up to the early 60s. | | |
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