Serpentine belt - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Robert Bergstrom · 07-31-2011, 01:04 PM

Got a question(s). I purchased a NOS GM serpentine belt set up (part# 12497698) with the R4 A/C unit (great deal for $250). Has anyone put this in? Do I need to buy all new hoses and is the wiring different? I have heard bad things about this type A/C compressor but want to us it.

I also have a stock posi unit for the 12-bolt. Can these units handle 360 HP (ZZ4 engine). Anything I should do to make it stronger during the rebuild?

Thanks

Bob

harleyhouser · 07-31-2011, 01:13 PM

i dont know about the belt system but i have personally had the stock posi in my 12 bolt in a lifted up 87 with 35s and have been pretty rough on it and have not had a bit of problems. my buddy has 12 bolt stock posi with 35s and has 3.73 gears and has a bad problem with doing burn outs on pavement with it. he has broken the ring and pinion playing before, but still runs the stock posi. o and his truck has plenty of hp, no way of knowing exactly how much though. good luck.

71meangreenc10 · 07-31-2011, 04:16 PM

Here is what I did, still need to put in pics, truck is getting AC finished, then pics. I would go get the sanden compressor, nothing but bad stuff I have heard about the R4 compressor.

I will add all the AC parts to the list once I get it back.

Smitty

http://67-72chevytrucks.com/vboard/s...d.php?t=468729

07-31-2011, 01:04 PM	#1
Robert Bergstrom Registered User Join Date: Mar 2009 Location: Vancouver, WA Posts: 111	Serpentine belt Got a question(s). I purchased a NOS GM serpentine belt set up (part# 12497698) with the R4 A/C unit (great deal for $250). Has anyone put this in? Do I need to buy all new hoses and is the wiring different? I have heard bad things about this type A/C compressor but want to us it. I also have a stock posi unit for the 12-bolt. Can these units handle 360 HP (ZZ4 engine). Anything I should do to make it stronger during the rebuild? Thanks Bob __________________ Vancouver Bob

07-31-2011, 01:13 PM	#2
harleyhouser Registered User Join Date: Jul 2011 Location: valliant oklahoma Posts: 97	Re: Serpentine belt i dont know about the belt system but i have personally had the stock posi in my 12 bolt in a lifted up 87 with 35s and have been pretty rough on it and have not had a bit of problems. my buddy has 12 bolt stock posi with 35s and has 3.73 gears and has a bad problem with doing burn outs on pavement with it. he has broken the ring and pinion playing before, but still runs the stock posi. o and his truck has plenty of hp, no way of knowing exactly how much though. good luck.

07-31-2011, 04:16 PM	#3
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,159	Re: Serpentine belt Here is what I did, still need to put in pics, truck is getting AC finished, then pics. I would go get the sanden compressor, nothing but bad stuff I have heard about the R4 compressor. I will add all the AC parts to the list once I get it back. Smitty http://67-72chevytrucks.com/vboard/s...d.php?t=468729 __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time



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