Anyone know this. I'm trying to find out. I bought my march underdrive pulley from thunder racing. I may have to call them and ask. My belts either broke or just came off some how last night.

 

Okay i found it on summitt's site. The part number is 4060592 and that is the goodyear brand. And this is without the overdrive alternator pulley. Hopefully this is the right size summitt has listed. I will find out soon.