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Can anyone tell me the underdrive crankshaft size from TPI Parts?

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Old Aug 25, 2007 | 10:18 AM
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88TransAmFreak
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From: NE Arkansas
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Can anyone tell me the underdrive crankshaft size from TPI Parts?
I need a quick answer if someone can help me

I'm doing a serpentine retrofit on my 82 Corvette and the stock crankshaft pulley is hitting my crossmember......

My only solution is to buy a underdrive set with a smaller crankshaft pulley for clearance.

I'm not looking to spend a whole lot and the price is right

So if anyone has bought a set of these could you give me a quick measurement of the crankshaft pulley?

Thanks again!

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Old Aug 25, 2007 | 03:54 PM
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Supervisor42
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From: Arab, Alabama
Car: 1988 Trans Am GTA
Engine: 350 4BBL
Transmission: 700R4
Axle/Gears: 3.27
Re: Can anyone tell me the underdrive crankshaft size from TPI Parts?
Originally Posted by V8S15Jimmy
...So if anyone has bought a set of these could you give me a quick measurement of the crankshaft pulley?
The one I bought and didn't use is 5-7/8" diameter at it's largest point. Not the pulley grooved area but the outer flange that keeps the belt from coming off.
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Old Aug 25, 2007 | 06:40 PM
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88TransAmFreak
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Re: Can anyone tell me the underdrive crankshaft size from TPI Parts?
Originally Posted by Supervisor42
The one I bought and didn't use is 5-7/8" diameter at it's largest point. Not the pulley grooved area but the outer flange that keeps the belt from coming off.
Thanks, That's what I needed to know
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Old Aug 25, 2007 | 07:15 PM
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Supervisor42
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From: Arab, Alabama
Car: 1988 Trans Am GTA
Engine: 350 4BBL
Transmission: 700R4
Axle/Gears: 3.27
Re: Can anyone tell me the underdrive crankshaft size from TPI Parts?
I didn't mention that I bought it used off of ebay and don't know if it's the same as the "TPI Parts" unit.
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