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08-08-2010, 03:52 PM
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#1 |
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Registered User
Join Date: Mar 2010
Location: Amherst VA
Posts: 150
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A/C pullies vs no A/C (1987 GMC V2500)
I have all the accessories off the front of the engine so I could paint everything. I plan to put factory A/C on at some point from a doner and wanted to know what pulleys are different for adding A/C. The truck is a 1987 and has the alternator on the left side with air pump under it and the power steering pump on the Right side facing the front. The alternator is driven by a serpentine type belt without a tensioner. (The photo is before I painted everything)
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08-09-2010, 01:19 PM
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#2 |
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Registered User
Join Date: Mar 2010
Location: Amherst VA
Posts: 150
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Re: A/C pullies vs no A/C (1987 GMC V2500)
I looked up belt part numbers for A/C vs no A/C and it looks like the Alt. and Air pump are 1" longer with A/C and the belt that runs the A/C comp. also runs the PS pump. I am not sure why the different belt lengths but if anyone knows or has a photo of a 85-87 with A/C that would help.
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08-09-2010, 07:58 PM
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#3 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: A/C pullies vs no A/C (1987 GMC V2500)
I suggest going to full serpentine belt. You can move the compressor to the passenger side. You can add a smog pump if necessary. Here is my setup without the smog pump option.
 A car left bracket will have a smog pump option. It is also in the same stock location as your truck. |
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08-09-2010, 08:01 PM
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#4 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: A/C pullies vs no A/C (1987 GMC V2500)
Pictures of an 87
http://67-72chevytrucks.com/vboard/s...d.php?t=415624 |
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08-09-2010, 08:08 PM
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#5 |
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Getting Old; Going Broke
Join Date: Apr 2010
Location: Owasso OK
Posts: 2,764
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Re: A/C pullies vs no A/C (1987 GMC V2500)
Like gchemist suggested, I'd take the opportunity if I were adding A/C and go with a full serpentine setup. Several year model cars with 305's will work, as would 89-91 suburban etc.
__________________
Why is every used 350 sbc out of a corvette? There's only two things that excite a man, expensive toys and real expensive toys. VEGETARIAN: That's an old Indian word meaning "I don't hunt so good." When the going gets tough, switch to power tools. |
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08-10-2010, 09:41 AM
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#6 |
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IT Guy/ Father/ Chevy lover
Join Date: Feb 2010
Location: Hoisington, KS
Posts: 568
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Re: A/C pullies vs no A/C (1987 GMC V2500)
G van's system will work too. If you can find one pull the computer and harness. Their nice to have.
__________________
78 Chevy (Pictures) SOLD 79 Chevy LWB (pasture) 83 Chevy LWB (crushed rusted beyond repair) 02 TrailBlazer SOLD 03 VW Passat wagonSOLD 95 extended cab silveradoSOLD (still in family) 05 Crew Cab Silverado 5.3 (The Turd) WTB: 66 El camino  Technology Specialist aspiring to be a gear head. 
Last edited by WigglesTheHoly; 08-10-2010 at 09:42 AM. Reason: typo |
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08-10-2010, 10:07 AM
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#7 |
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Registered User
Join Date: Mar 2010
Location: Amherst VA
Posts: 150
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Re: A/C pullies vs no A/C (1987 GMC V2500)
I bought a 1985 parts truck today with A/C so I should be set.
Thanks, |
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