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Old 04-21-2002, 08:03 PM   #1
Mike C
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Post GM fan clutch source

Does anyone know of a source for GM fan clutches for a 69-72 truck with 350 4bbl and AC? Local GM dealer shows it as being discontinued. I bought one for a '79 Corvette but it has the larger 3/4" pilot rather than the 5/8" pilot the truck water pump has. I have not heard favorable comments on aftermarket clutches, and the first one DID last 30 years and 350k miles :-)

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70 GMC 3/4 ton Sierra Grande 402/TH400
72 Jimmy 4WD 4spd 4" & 35's
64 Corvette Coupe
68 Camaro 'vert TPI & TH700
69 Z/28 355 12.6's @110
72 Datsun 240Z-ol' reliable




[This message has been edited by Mike C (edited April 22, 2002).]
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72 Jimmy 4WD 4spd 4" & 35's
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Old 04-21-2002, 08:18 PM   #2
Longhorn Man
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I have one from a parts store on mine...no problems, I spin it to 6500 RPM once in a while too. been on since '98.

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
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Old 04-22-2002, 08:35 AM   #3
Frank_Zeller
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Pepboys

Hayden 2747 HD........kicks in about 170F

I run the sever duty one on my Pontiac that runs partially engaged all the time and kick to to full at about 190F


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Old 04-22-2002, 03:35 PM   #4
Mike C
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What's the price and how long have you been running it? I've heard that aftermarket fan clutches may only be good for 5 years or so and I consider that unacceptable. GM pisses me off when they discontinue stuff. So much for "keeping your GM vehicle all GM" like the ad used to say...

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70 GMC 3/4 ton Sierra Grande 402/TH400
72 Jimmy 4WD 4spd 4" & 35's
64 Corvette Coupe
68 Camaro 'vert TPI & TH700
69 Z/28 355 12.6's @110
72 Datsun 240Z-ol' reliable


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52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
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Old 04-22-2002, 03:59 PM   #5
Frank_Zeller
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only 2 years......
75.00
this is the sever duty one on my Firedird





[This message has been edited by Frank_Zeller (edited April 22, 2002).]
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Old 04-22-2002, 04:02 PM   #6
Frank_Zeller
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Maybe ask GM for one for a 1985 truck...
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Old 04-22-2002, 09:42 PM   #7
Mike C
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I just don't know if the spacing is different since ours are short water pumps. I guess I can carry the old one in and compare apples to apples...
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52 M38A1
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68 Camaro 'vert LT1 & TH700
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02 GMC 2500HD 4x4 Duramax
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