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underdrive pulley

This is a discussion on underdrive pulley within the GTO forums, part of the Vehicle Specific category; im looking into purchasing a 25% underdrive pulley and i was just wondering if i need to order the accessory ...

  1. #1
    Junior Member ponyeater123's Avatar
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    Red
    2004 Pontiac GTO

    underdrive pulley

    im looking into purchasing a 25% underdrive pulley and i was just wondering if i need to order the accessory belt too or if the stock belt will work just fine.

  2. #2
    Grand Imperial Wizard Sarge's Avatar
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    Retired Outlaw Sum Bitch

    I have the underdrive pulley and just changed both belts....problem is I do not know what the "stock" belts are so I suck at helping you here.....I dont remember having to buy any special size belts though with the underdrive pulley.....

  3. #3
    Junior Member ponyeater123's Avatar
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    Red
    2004 Pontiac GTO

    ok thanks... i went to rpmoutlet.com and they have accessories and what not listed after the product and they have two different accessory belts so i just needed to know if i had to get those belts or if itll run fine without them. dont wanna spend any extra money if i dont have to. ya know?

  4. #4
    I went to Playboy Mansion FantaZGuy28's Avatar
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    YJ
    04 GTO M6

    I forgot what size the belts are, but make sure that they are goodyear gatorback. A bit more expensive but you get what you pay for.

  5. #5
    I f@#ked the prom queen RoadWrath04's Avatar
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    drivers' morale daily.
    Destroying Mustang-

    what kind of advantages are achieved with the underdrive pulley??? just curious...

  6. #6
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    Impulse Blue
    2004 GTO

    I'm running the SLP pulley and you definitely need different belts than the originals. I'm also running the gatorbacks.
    Rob
    04 GTO
    96 WS6

  7. #7
    Grand Imperial Wizard Sarge's Avatar
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    Quote Originally Posted by RoadWrath04 View Post
    what kind of advantages are achieved with the underdrive pulley??? just curious...
    Less drag (parasitic loss) on the motor....she spins up faster.

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