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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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| | | | Joined: Aug 2003 Posts: 65 Shop Shark | | Shop Shark Joined: Aug 2003 Posts: 65 | George
That system was used on GM trucks until about 1956, when they went to a single driveshaft for the rear axles.
Before the days of diesel, truckers used to pull 35 foot grain trailers with the 235 engines. My dad's dealership used to make what we called double troubles. They'd put a Oldsmobile Rocket V8 behind the cab with a Hydramatic transmission driving a second axle and when they got to a hill, they'd start the engine to pull the hill.
No Kidding!!!
Steve Ley
51 Chevrolet Canopy Express
02 K25 Duramax Crew Cab
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