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Mod | | | Forums66 Topics128,101 Posts1,056,179 Members48,436 | | Most Online14,466
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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| | | | Joined: Oct 2016 Posts: 496 Shop Shark | | Shop Shark Joined: Oct 2016 Posts: 496 | This is a question for all you stock 235 three speed guys......
Approx how many miles do you get on a full tank?
1950 SUBURBAN / SCHOOL BUS A.K.A "THE SCHOOL RUST"
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | year and size truck/engine?
what kind of road/driving?
12-20 mpg w/235 w/3.55 rear end: 65-45 mph on good non-stop-and-go roads | | | | | Joined: Oct 2016 Posts: 496 Shop Shark | | Shop Shark Joined: Oct 2016 Posts: 496 | 1950 235 suburban three speed 650-16 tires blacktop roads
1950 SUBURBAN / SCHOOL BUS A.K.A "THE SCHOOL RUST"
| | | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | 1957 with 235 and 3sp _____________ 13mpg or about 225 miles per tank
Same 57 with BW OD trans _________ 17-18mpg or about 325 miles per tank
Set up now which is apples and oranges so not much related to original set up but an interesting note on how far engine tech has advanced.
Same 57 with 435hp LS3 and 4L80E trans ___________ 25mpg or about 450 miles per tank.
Rear gears, gas tank, and tires stayed the same.
It will take a L-o-n-g time for the increase in mileage to pay for the swap.
Evan
| | | | | Joined: Jan 2002 Posts: 2,839 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,839 | 16-17 mpg for my 235, 4spd, 3:55 rear end.
Craig My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear My truck ....... Respect The Rust If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
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