for a '05 4.8L

dont try and talk me out of it. my mind is made up.

 

waste of money dont do it IMO

 

I went with the slp pulley from speedinc. 180bux. free shipping and by moving to AZ from chicago I saved myself a 10% sales tax.

 

post up and let us know if you see any differences with the new pulley

 

I will. How do you like that tr220 cam? Is it a 112 or 114?

 

Just curious... everyone always gets flamed for ud pullies.... what made you make up your mind? I have been wanting a set myself but couldn't justify 200 bucks for a pully? I would like a set too, did you ride in a truck with them or just know that is what you want to do?

 

it's on a 112, I really like it, very streetable and makes good power (sotp).

 

UD pulleys do add HP and honestly if you're looking for that last 10th without going inside the motor they're worth it. How many people would tell you not to get CAI? They're good for about the same power as a pulley. 7-10hp at the wheels is nothing to scoff at and if you're worried about not making enough juice get the kit with both the UD and OD pulley.

 

SDPC sponsor on here has them for I believe $209 and comes with both new belts and new bolt.Best deal IMO.

 

my truck has 4.56 gears from 3.73. I figured the underdrive pulley would put less stress on the accessories at highway speed. Plus it should help gas mileage.

The reason the pulley is so expensive is the pulley is built into the harmonic balancer. So your buying a harmonic balancer and pulley.