Paul57

I have looked for underdrive pulleys and this is the best price I could find... http://www.kmjent.com/cart/product.php?productid=1686 .
Is there a different one for the 6.0 truck motors or will this work??
I have to buy something so it may as well be underdrive.
I won't be shifting over 5500 so I shouldn't need a mega-dollar unit, hopefully.