Gatorback vs Dayco Poly Cog - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-30-2007, 12:37 AM   #1
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Default Gatorback vs Dayco Poly Cog

I went to buy a new alternator belt from Advance and they had Dayco brand Poly Cog belts. Similar in design to Goodyear Gatorbacks. Does anyone have an opinion between the two for use as an SC belt?
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Old 05-30-2007, 12:44 AM   #2
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I went with the DAYCO Polycog when I pulleyed my 99. I regretted it. Even after I went from the 3.3" back up to the 3.4" pulley it still slipped quite alot. I still run the belt -it'* tight as hell with the tensioner at max tension and using the stock pulley (took 2 guys to get the shorter belt on with the stock pulley).
I was really disappointed. I could have ordered the Gatorback for the same price at Autozone, but the guys at Auto Value SWORE up and down that I'd be way happier with the Dayco Polycog. If I wasn't such good friends with the guys I would have brought it back (I actually should have just returned it at a different Auto Value).

Also, after seeing the Gatorback on Travis 97 SSEi I have to say that the Dayco is obviously 2 steps behind in the design category -the Gatorback has deeper grooves across than the Dayco, meaning it can be wrapped more around a pulley for maximum grip.

So if you want my advice - Go Gatorback.
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Old 05-30-2007, 12:45 AM   #3
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Well I won't buy another Dayco. I had one in my 95 SSE NA and my last truck a 2002 F150. The belt didn't last as long as I thought it should in either. I gotta replace the belt in my 02 due to slippage, I'm going to get the Goodyear (unless there is something better).
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Old 05-30-2007, 12:57 AM   #4
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well i dont know anything about the Dayco. But i REALLY like my GatorBacks. I had magor slipage and belt dust with my older stock type belts and even after a pulley size drop i havent had ANY issues with the GB'*
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Old 05-30-2007, 01:19 AM   #5
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John, Ive personally ran both types on both my 93 SSEi and 97 SSEi, the gatorback out performs and out lives the other Dayco brands, or so they did on my car, the Daycos sliped notabley as well on my 97. Not good.
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Old 05-30-2007, 01:23 AM   #6
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I had belt slip with the Dayco on my 95. Boost response was improved when I went to a Gatorback.
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Old 05-30-2007, 02:22 AM   #7
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Damn. Go figure.
I sold a LOT of Dayco'* and never had a problem. SOmething about this application perhaps? If you would have asked me, I would have said that the Dayco is about as good a belt as you could get.
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Old 05-30-2007, 02:52 AM   #8
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Dayco pfffffft.

If you like slippage and pulley groves full of soft hot rubber buy Dayco.

I used to work for a Dayco distributer and no one working there used Dayco belts.

There may be a better belt out there than Good-Year Gatorback but I have not found it.
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Old 05-30-2007, 08:41 AM   #9
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Hmm... Call me different, but I hate Gatorbacks. I have a different perspective....

The Gatorbacks are LOUD. A Gatorback belt is by far the loudest belt I have ever heard.

You have a supercharger, so the noise might not bother you. In my NA application, the noise was very irritating.
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Old 05-30-2007, 08:47 AM   #10
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I use Gatorback belts on both my N/A vehicles and have never noticed any noise issues. In my Ranger, the Gatorback belt was the only thing that would completely eliminate belt slippage.

After my experience with GY GB belts, I may never use anything else again.
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