Underdrive Pulleys?????

Hi everyone, I was just wondering what your thoughts on underdrive pulleys are? I know they give you a little more power but have heard that your accessories, like you air conditioner, dont work as well.
I would like to know some pros and cons on these if anyone has any experiance with them.

Thanks

kmoney67954



2000 Chevy Silverado
Short Bed Reg. Cab
4.8l with K&N FIPK and 2 Flowmaster turbo mufflers with high flow cats

Everything will work like normal as long as you buy both the crank pulley and the alternator pulley. You'll gain about 1-2 tenths off of a quarter mile and they will usually run you alittle over $200. Really not worth the money, IMO. I would save this for one of the last mods you do, due to the high cost and little gain. Another downfall is that, after helping my friend put some on, I must tell you.... the crank pulley is a pain in the butt to put on. You'll have to have a pulley puller and it takes some time finding a way to get some leverage to take the bolt out.

Thanks for the input Slowprocess. What are some other mods you would do before them?

kmoney67954

crap ur sayin i should have gotton the alternater and underdrive pulley at the same time???? grrrr i only got a under drive pulley for my 96 k1500 with the 5.7

btw i did notice a better feel and the truck runs smooth now and i dont have any complanet with the ac it acttually blows colder which is a plus