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belt size for AIR bypass

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Old Oct 11, 2007 | 01:05 PM
  #1  
FireBirdKnight's Avatar
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From: michigan
Car: 1985 TransAm
Engine: 5.0L TPI
Transmission: 700R4 auto
Axle/Gears: 3.27 BorgWarner
belt size for AIR bypass

i went to autozone and used the part # on the tech article 968k6 and they said they dont carry that part # am i at the wrong store? or is the tech article wrong? what would the part number be for duralast im guessing the same
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Old Oct 11, 2007 | 01:25 PM
  #2  
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: belt size for AIR bypass

do you have AC still or a ac delete pulley in place?

if you route the belt like the tech article says you may need a longer belt than they say. Last thread i've seen a guy use a 98 inch belt i believe. dayco belt 5060980. but my advice is to measure it out first with string to get an idea. if not, then jsut get a 97 and 98 inch and see which one fits. take the other back
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Old Oct 12, 2007 | 02:40 PM
  #3  
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From: Weeki Wachee, FL
Car: '89 Formula
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: G92
Re: belt size for AIR bypass

Once you find out could you let me know the part#.
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Old Oct 12, 2007 | 07:51 PM
  #4  
FireBirdKnight's Avatar
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Joined: Apr 2006
Posts: 344
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From: michigan
Car: 1985 TransAm
Engine: 5.0L TPI
Transmission: 700R4 auto
Axle/Gears: 3.27 BorgWarner
Re: belt size for AIR bypass

nvm guys , its just autozone sucks , advance auto parts has em for 14 dollars a belt
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Old Aug 5, 2010 | 09:30 PM
  #5  
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From: Chicago, IL
Car: 1986 Pontiac Firebird
Engine: 97 LT1 W/ Alot of goodies.
Transmission: 4L60E W/ Yank SS3600
Axle/Gears: 3.27 9 Bolt BW
Re: belt size for AIR bypass

I know its an old thread, but what was the part number for advanced auto?
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Old Aug 6, 2010 | 12:57 AM
  #6  
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: belt size for AIR bypass

Not everyone carries that belt size - it's a 98.6 inch belt with 6 ribs - most places sell belts in 1/2 inch increments. Even then, one size does not fit all - you'll need to experiment with your car to get the right size, but the 986k6 is a good starting point - guess it depends on the tension in your idler pulley spring and such - when I did this years ago I had to use a slightly shorter belt.
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