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I know a lot of us JRSC guys having or had problems with our belts and pulleys and a lot of time we hijacking other threads because of it, so I thought it was a good idea to start up on a thread just about jrsc belts and pulleys. The thread is not only for current jrsc peeps but also for the newbies as well so they won't get us frustrated asking the same question over and over again.

I'll start off with one question, I read around and found a member who is using a goodyear 070775 belt which is 7 rib and 77.5 inches long. I tried a dayco belt that was 77.5 long and it wasn't even anywhere close to fitting onto the 3.4 pulley. The dayco 78.9 belt fit extremely well for the purpose. What I want to know is that anyone else tried the goodyear 77.5 long on a 3.4 pulley or is it because different makers make belt a little bit different in length.

TT
 

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Discussion Starter #4
well so can someone please tell me what up with the goodyear 77.5 belt? I need to get back on the 7 rib and I don't want to order it if it doesn't fit.
 

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tt061880 said:
well so can someone please tell me what up with the goodyear 77.5 belt? I need to get back on the 7 rib and I don't want to order it if it doesn't fit.
wdsonny said:
Manufacturer No. Goodyear No. Metric Part No. Replace By Poly-V Belts Goodyear 4070775 7PK1970
 

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Discussion Starter #7
that is just the part number for that belt, it's 77.5 long, I think wdsonny still on the belt that came with the kit so I don't think he ever had the 77.5 belt on
 

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Discussion Starter #9
he's the only one I know that still run on the original belt, the rest of gone through at least 2 belts and maybe still counting lol
 

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tt061880 said:
he's the only one I know that still run on the original belt, the rest of gone through at least 2 belts and maybe still counting lol
Nope...I'm still on the original belt and I've had my charger longer than sonny. I've also upgraded from street to race and from race @ 5# to race @ 7# and still have no belt problems
 

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yea this thread is a good idea... cuz i'm a noob on the jrsc.. cuz i'm getting mine in a weeks time.. and i'v seen ppl say that they have had problems with the belt that comes with the kit... soo i just wanted to know if useing the origenal belt is better or should i get a nother one..?
 

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Discussion Starter #12
Norman Sipp said:
Nope...I'm still on the original belt and I've had my charger longer than sonny. I've also upgraded from street to race and from race @ 5# to race @ 7# and still have no belt problems

I think the sc kit back in the days was better made than now. As far as I know, everyone who got the kit since march had threw a belt. Very nice going there norman sipp, u are the JRSC OG lol
 

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My belt is still going, clutch is gone, but anyway. My belt is still good, but one rib closest to the snout is gone. I never noticed it until Doug pointed it out last week. I am researching as to which belt to get to replace it. Dayco and Goodyear are built about the same. The length issue is what seems to perplex everyone. Let me see what I can find out.
 

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Discussion Starter #19
wdsonny said:
My belt is still going, clutch is gone, but anyway. My belt is still good, but one rib closest to the snout is gone. I never noticed it until Doug pointed it out last week. I am researching as to which belt to get to replace it. Dayco and Goodyear are built about the same. The length issue is what seems to perplex everyone. Let me see what I can find out.

that's what I thought about the dayco and the goodyear, they both look the same
 

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tt061880 said:
he's the only one I know that still run on the original belt, the rest of gone through at least 2 belts and maybe still counting lol
i've still got my original belt, been on since early april, running the 7lb pulley.

no problems at all, and i don't have any black dust in the engine bay that many others (including sonny) were complaining about.
 
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