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Old 05-24-2010, 09:24 PM
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Default Gatorback Serpentine Belt

I'm looking into replacing my serpentine belt on my 2005 Tahoe 5.3L engine. I heard Goodyear's Gatorback belts are a good replacement. The OEM belt my Tahoe has is a 6KP2365, which I believe measures out to 93.1 inches in effective length. Gatorbacks do not come in 6KP2365. The closest they have is a 6KP2360, which is 93 inches in effective length. They also have one slightly longer, 6KP2375, which is 93.5 inches in effective length.

Does 1/10th of an inch shorter on belt make a difference (i.e. stress on tensioner, pulley damage, etc) if I were to go with Gatorbacks 6KP2360? What about going with the 6KP2375, which would be 4/10th inches longer? Or, am I better off buying the OEM? Trying to save myself some money here.....OEM replacement at dealership costs an arm and a leg.

Last edited by TAHOE2005; 05-24-2010 at 09:26 PM.
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Old 05-24-2010, 09:45 PM
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a belt on advanced's website is only $10-$30 depending on brand... INLESS you want to go to the dealer..but i bought one for my truck at advanced and its been good goin on 2 years and 30k miles

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Old 05-24-2010, 10:06 PM
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The tensioner should be able to make up the 0.1" shorter belt.
2010 Sheer Silver Tahoe LTZ (all options but sunroof, power boards), GM (body color flaps, rear console, 3rd row mat, 2-Way Remote, chrome gas door, Esky rack), Eagle Eye LED tails, SLP dual tip exhaust, Silver bow-ties/rear wiper, Catch-All mats, AlphaTherm washer fluid heater, Putco chrome mirror covers, silver calipers, board chrome trim, tint, GMPP Major Guard

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Old 05-24-2010, 10:07 PM
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Use the slightly shorter belt, it will be fine.
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Old 05-24-2010, 10:28 PM
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Sounds good fellas. Thanks for the responses. Going with the gatorback belt will save me $45. Dealer wants $74 for the belt....ouch! My current belt has 81,000 miles on it and still looks good; however, the ac belt is cracking. Figured, I'd change serpentine belt (preventative maintenance) since I have to remove it to replace the ac belt.

Thanks again!
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Old 05-25-2010, 07:41 AM
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You may already know this, but its a good idea to keep the old one and toss it in with the spare tire jack as a back up should your new one fail on the road you will have a back up...
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Old 05-25-2010, 10:55 PM
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Good advice...after I inspected the belt, I figured I'd keep it like you said....just in case. Thanks again for all the info.
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