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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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| | | | Joined: Jun 2016 Posts: 236 DLBrooks | | DLBrooks Joined: Jun 2016 Posts: 236 | Did the 41-46 Big bolts only have 6 blade fans, or if any truck was ordered with a shroud have 6 blade fans? With or without heavy duty radiator. I kninda unknowingly put a 4 blade fan with shroud on the 3/4 ton. If I had remembered I had it, I would have used the 6 blade. I have no overheating problems on the 3/4 ton --- 235, 4 blade fan with shroud ---light duty radiator all off a 1.5 ton.
Just curious. | | | | | Joined: Dec 2010 Posts: 97 'Bolter | | 'Bolter Joined: Dec 2010 Posts: 97 | Based on WW2 Canadian Army Chevrolets, the same weight class truck could be fitted with either 4 blade or more fans depending more on where it was expected to be used (Africa, India, UK, arctic?) than the weight class (3/4 ton to 3 ton load). The radiators also didn't change much, if at all for the different weight classes. All very nice - if it looked the same and fit the same it would basically work the same... | | | | | Joined: Jun 2016 Posts: 236 DLBrooks | | DLBrooks Joined: Jun 2016 Posts: 236 | Correction on my initial post. The 1.5 ton had the heavy duty --thicker radiator. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | I once saw a 1.5 or 2 ton Chevy fuel tanker with what appeared to be a factory radiator that was very thick.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
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