[zmartin]

Hey guys. I've been looking for and underdrive pulley for my 2001 Durango 4.7. Everything I can find online is so vague. They don't tell you the % underdrive it is, many of them don't include my 2001 Durango on the list of applicable vehicles, but do include an 01 Dakota 4.7. So what do we know about underdrive pulleys? I found a few older threads on here about them, but I was hoping someone could give me a more up to date idea of where to find them. I'd like to stay under $200 and I'd like to underdrive 25%. Do they typically come with a different alternator pulley as well?
Thanks

 

[Adobedude]

Hey guys. I've been looking for and underdrive pulley for my 2001 Durango 4.7. Everything I can find online is so vague. They don't tell you the % underdrive it is, many of them don't include my 2001 Durango on the list of applicable vehicles, but do include an 01 Dakota 4.7. So what do we know about underdrive pulleys? I found a few older threads on here about them, but I was hoping someone could give me a more up to date idea of where to find them. I'd like to stay under $200 and I'd like to underdrive 25%. Do they typically come with a different alternator pulley as well?
Thanks

Don't do it, spend your money on something else, It'll slow down your alternator, you won't notice any gains and your PCM will pitch a fit, it likes a lot of volts....ALL the time.

 

[zmartin]

Do you have an underdrive on your 4.7? Because I've been reading around online for a few days and have gotten zero bad feedback on the underdrive pulleys on the 4.7s. I read somewhere that dodge actually went to a smaller drive pulley in 08 and didn't change anything else, don't know if that's true or not.