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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: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | That is right in the range one expects from your truck. A set of 3.55 gears for the rear end should boost it up to 14.5 to 15mpg. Many are using the T5 overdrive transmission which some claim puts them near the 20mpg mark but I think 17-18 is more realistic. When your truck was new it was most likely used as a TRUCK so getting the job done was more important than fuel economy plus gas was in the 20-25 cent range in 1954. Radial tires can gain at least 1mpg. None of the above mentioned modifications are easy or cheap to do in France (I'd guess) and would take a long time to recover the expense with increased gas mileage saving.
Evan
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