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Installing underdrive crank pulley. Is smaller drive belt required?

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Old Jan 24, 2002 | 10:11 AM
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1BadGTA's Avatar
1BadGTA
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From: Grand Forks ND
Car: 1989 Trans Am GTA
Engine: 5.7 Liter
Transmission: 700R4
Installing underdrive crank pulley. Is smaller drive belt required?
I was just curious. I'm going to install underdrive crank pulley, and wanted to know if it required a shorter belt.

Thanx,
Chris
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Old Jan 24, 2002 | 10:54 AM
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irocnroll89
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From: previously OKINAWA JAPAN,georgia, now new england
Car: 1989 IROC--1989 T/A
Engine: 5.7 TPI in both
Transmission: W/C T-5 in both
Axle/Gears: B/W 3.27 in both
i would say yes. I bought a set of pullies, mr.gasket brand and had to get anew belt. This for a 2 piece set. SHAGGY
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Old Jan 24, 2002 | 02:23 PM
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1BadGTA
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From: Grand Forks ND
Car: 1989 Trans Am GTA
Engine: 5.7 Liter
Transmission: 700R4
I know you need to get a shorter one if you get the 2 pulley set, but what about just the crank pulley?

thanks
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Old Jan 24, 2002 | 02:25 PM
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RB83L69
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Of course. The pulley is smaller, so it needs less belt to go around it.
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