I am thinking of putting them on my car but im not sure how i know what belt to get since it will need to be smaller in diameter. Does anyone know a part # for the belt? Also I was wondering if it will hurt my cooling? Will it not cool as well as it did?

Thanks for any advice,

HotRod55

Every set I have ever bought had the # for the belt included in the instructions. If you have used set w/o instructions, try checking the company web site for belt sizes. The reccomended belt will vary slightly from one brand to the next.

I've never had any cooling problems, just charging problems. I usually just run the crank pulley and pass on the alternator pulley.

Thanks for the info!

i know this is a stupid question but what really dose a underdrive pulley do?
also i heard their not good if your running n.o.s or turbo is that true? sorry if im like stealing a thread or somthing