[360HP]

hey guys i was looking at my crankshaft pulley and i dont know if i have a freak engine? but i want to get underdrive pulleys, but the only ones i have to choose from is 7-grove or 6- grove i have 6-grove but i the pics ive seen it said it only fits 4-bolt crankshafts, i only see one big bolt on mine not 4? and the other one i seen was a crankshaft pulley which is one big piece ............................... does anybody have a clue because i dont want to order the wrong one......... 2000 dodge ram 5.9 gas

 

[hrusso]

Get a flashlight the pulley bolts are in there, your looking at the dampner bolt. My suggestion just buy the crank pulley only, you will not have charging or overheating issues. ASP is the brand.

 

[silvershark]

could you tell any power gains form the asp crank pulley?