4.0L pullies?
 

yeah i want them for my ranger! where can i get them and for how much am i looking at! it halls some ass already but trying to get as much out of it as i can.

i myslf want to upgrade as well as fix my squeeking belt problem. its driving me crazy and already replaced the tensioner.

You can get them here:

http://www.stuffforyourranger.com/st...1f542695b24e67

wait... ur belt still squeeks after replacing the tensioner?
i had a 3.0 in my old truck that squeeked ALOT.
i took it to a shop and they said it was the water pump.
it ended up just being the tensioner.
and it sounded fine after that was replaced.
any idea wut ur prob could be?

i have no idea. its funny though it never squeeks until i hit 2,450 RPM. and the belt looks fine and has a new tensioner. im thinking of just replacing all the pullies and calling it a day.

Yup, that is where I got mine from.......

did you guys notice any power and milage gains from these

yes.....they are worth the money.....

very well worth it. foolish not to buy!

i'm still a bit confused on these. Ok i get the different pulley size for the crank, but then you add a different size for the water pump and the alt., so those turn at the same rate as stock +/- a bit, right? so all that is the same is tensioner, P/S and a/c[where applicable]. So what really is the difference then?

^ditto

how much MPG and HP improvement will you get with this?

anyone? how much hp and mpg improvement and what exactly do these do

They reduce the work for all the accessories and add a few horspower to the wheels instead of the rest of the engine. Its like replacing a manual fan on a V8 with an electric fan . There would be no pull or stress on the engine with the electric fan or in this case the underdrive pulley set. It will increase the MPG's and give you probabaly a few HP gains as well. i had a set on my mustang and it gave a few HP gains and a few MPG's, but ran the car a little hotter due to the fact it didnt spin the water pump as fast.

didn't notice too much mpg improvement, maybe 1mpg, but didn notice hp gain, much more responsive, good boost through rpm range. got the water and alternator pully so everything seems to be running fine like before, just a bit more power.