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04-08-2002, 07:47 PM
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#1 |
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Account Suspended
Join Date: Jun 2000
Location: over yonder
Posts: 14,270
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Stock radiator fan size for 4x4???
I know absolutely nothing about the 4x4 trucks of this era, so here is where I came looking for answers to my questions. My brother has a '71 Chevy 1/2 ton 4x4 that needs a fan. He just replaced the motor with a GM crate motor and decided to fix the cooling system where the previous owner (i think the P.O. may be related to longhornmail's dope smoking ol' man/previous owner)...the guy had "duct taped and bailing wired" a cooling system together from "who only knows" what kind of parts (radiator, short water pump,shroud and fan). He replaced the water pump, radiator and found an NOS shroud for a 4x4 truck, but now the fan that was on there is too big for the shroud???
Can anyone help us out here...need to know the diameter of a stock fan for a '71 1/2 ton 4x4. I know we can measure the opening in the shroud to find a fan that will fit, but now we are wondering if the guy sold him the correct shroud for this truck....i know i can count on the folks here. Thanks! ------------------ Keep On Truckin' Shane slecroix@bellsouth.net Athens, Alabama [This message has been edited by Shane (edited April 08, 2002).] |
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04-08-2002, 09:35 PM
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#2 |
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Account Suspended
Join Date: Jun 2000
Location: over yonder
Posts: 14,270
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04-08-2002, 10:22 PM
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#3 |
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Registered User
Join Date: Dec 2000
Location: Greeneville, TN
Posts: 3,097
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I believe it is 17 5/8"
------------------ 67 1/2 ton 4wd custom cab 72 1/2 ton 4wd super 71 1/2 BB super cheyenne shortbed 71 stepside shortbed 67 panel project 70 3/4 ton 2wd suburban 72 3/4 GMC 2wd sierra grande New and used Truck parts Front Royal, Va. www.s-c-t-p.com
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atheystruck@comcast.net 67 1/2 ton 4wd custom cab 72 1/2 ton 4wd super cheyenne 71 1/2 BB super cheyenne shortbed |
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04-09-2002, 05:21 AM
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#4 |
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user # 2756
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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I just replaced the fan on my 70 with a unit from flex-lite. My stock one measured 18" the fan I replaced it with was 18.25", plenty of room.
------------------ 1970 GMC K25 Custom Chesapeake, VA My 70 GMCor Webshots http://community.webshots.com/user/70gmc
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
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04-09-2002, 09:45 AM
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#5 |
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Registered User
Join Date: Jan 2002
Location: So Cal
Posts: 658
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The stock fan on my 1971 K10 is right around 17.5 inches (difficult to get an exact measurement), the fan shroud is 20 inches even. (I know both are stock.)
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71 Cheyenne Super 4X4 SB 72 Cheyenne Super 4X4 SB 72 Cheyenne 4X4 SB |
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