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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: Mar 2005 Posts: 170 Member | | Member Joined: Mar 2005 Posts: 170 | I believe the 39 and 40 beds rear fenders are slightly different. Also the grills are slightly different also, a different number of bar I think. Canadian trucks used a 224 6 cyl., while US models used the 216. But these motors are almost identical. Wiring and regulator is slightly dfferent between 39 and 40 also.
Steve | | |
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