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Guys Ive searched and swore there was a post on changing the Deuce fan out and putting a Duramax fan in its place. Anyone done this ? I cant find the post.. Thanks
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Deuce Fan mod/ upgrade
- Thread starter SteelNinja
- Start date
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The fan on a D-Max turns opposite engine rotation, wrong way for a deuce.
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This?
Nylon Radiator Fan?
Has anyone "upgraded" to a nylon fan? There are some on FleaBay for sale for $125. I wouldn't mind using it alone or along with the thermal fan clutch mod this summer.
www.steelsoldiers.com
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I used a synthetic generic fan from Summit with very satisfactory results. Much less rotating mass and no danger of a fan blade massacring the radiator.
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I wouldn't say no chance, seen plenty of them crack then fail horribly. I had one explode on the dyno, took out the radiator, upper and lower hoses, shroud and a mess of wiring. Had the hood have been closed, pieces parts woulda put holes in the fiberglass hood. Dam thing took out my coffee cup I had on the bench 6 feet away!
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DaneGer21
Well-known member
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Would you happen to have a part number? Just curious
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Steel and aluminum bend when they strike things, yes, sometimes the radiator core gets damaged. Plastic/nylon, once compromised, come apart. On the other hand, I have seen trucks come in with cracked/broken composite fans that when the customer was notified, they just said, yeah, it's been like that for years.
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Here is the original thread with the summit part number. 20" fan. The blades are soft enough to be trimmed with scissors if there is fine tuning required.
SERVICE BULLETIN: M35A3 Self-Destructed Radiator Fan Threw Blades
To the M35A3 owners, my truck turned 25 years old and the plastic fan came apart. I was lucky and did not lose my radiator. For piece of mind, replace your fan.
www.steelsoldiers.com
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I bought a DRMO M37 years ago with a single stock fan blade sticking out of the hood...
Guess they decided not to fix it at all.
Guess they decided not to fix it at all.
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That was my thought Thanks
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A composite fan mounted on a clutch-type mount would be nice! I wouldn't intentionally go thru 4-5 ft of water or whatever - so/ but if someone did I would think the clutch may slow it down or maybe stop it from breaking?? I was watching a video when back in the ( maybe 1960's) the military drove the deuce across a river over the cab , What fan would they be using ? i guess the Gov has plenty of funds to fix it tho..
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The deuce fan is a clockwise rotation correct?
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It turns the same way as the engine turns. D-Max fan turns opposite engine rotation.
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I found the following years ago:
"Can use a fan clutch off a 1996 F-350. Need 1 ½” set collar welded to the fan hub. Also, longer bolts are needed. Trim new blades to the same diameter as the original blades."
I hope this may help. I could use one of these blade-clutches if you find a couple.
DB556
Active member
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A 96' F-350 so that would probably be a early 7.3 powerstroke, guess ill have to look into that.
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Or a gasser, IIRC they had 460s in the std and dually .I am unsure if the fan clutch is directional.
oddshot
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KW W900 with a 15l 550 hp Cummins in it. Fans are overdriven so are spinning 1.5 or so faster than the engine.DANG!!!!!I wouldn't have thought you could get a LDT-465 to rev that high.