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12-24-2008, 03:41 AM
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#1 |
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Registered User
Join Date: Sep 2008
Location: Tempe, AZ
Posts: 770
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Stock Fan Clutch Info. Needed
Got a couple questions regarding stock fan clutches...
1. Did all our trucks come stock w/fan clutches...or maybe just AC trucks? 2. What diameter fan & how many blades is recommended for an AC truck w/stock shroud? I will be putting in a Vintage Air system and just realized that the fan I just sent to the powder-coaters is probably not gonna work....as it is a clutchless type.... Thanks in advance! Dan
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My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=309288 |
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12-24-2008, 04:27 AM
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#2 |
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Gone to greener pastures
 Join Date: May 2007
Location: Gateway to the Delta
Posts: 7,354
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Re: Stock Fan Clutch Info. Needed
My '72 GMC, 402, with A/C has a clutch fan.
The fan is approximately 18" in diameter, with 6 blades, in a factory shroud. I'm afraid I can't do much better than that right now. It's dark, after midnight, I was reading the tape measure while holding a flashlight, & it's sprinkling (fortunately, not raining). If I can help you later on, after sunrise, just give me a holler & I'll go back & better look @ things for you.
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'69 Chevy 1/2 T LWB Stepper: Daily Beater '72 GMC 3/4 T Fleet: Another Daily Beater '72 Plymouth Gran Coupe: ? "Ah women. They make the highs higher and the lows more frequent." Friedrich Nietzsche "Never kick a fresh turd on a hot day." Harry S. Truman GUN CONTROL: Never having to say, "I missed you." Always fire two warning shots into your attacker's chest area before putting a bullet between his eyes. Paraphrased from Louis Awerbuck |
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12-24-2008, 10:20 AM
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#3 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: Stock Fan Clutch Info. Needed
A/C trucks all came with the clutch fans. Mine is a 7 blade that measures 17.5" across from blade tip to tip.
Make sure the blades aren't bent at all or you will be buying water pumps on a regular bases.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71  Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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12-24-2008, 10:32 AM
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#4 |
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Registered User
Join Date: Jul 2006
Location: Central PA
Posts: 12,201
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Re: Stock Fan Clutch Info. Needed
I have one that might work for you...
__________________
The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer" |
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12-24-2008, 10:46 AM
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#5 |
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20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 13,593
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Re: Stock Fan Clutch Info. Needed
My '72 w/factory air has a 7-blade fan.... iirc, it's about 18" diameter. I'll try to remember to check it after the sun comes up, if there's not too much snow on the hood...
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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