I have an ASP underdrive pulley that I bought used and would like to install. I also have the correct shorter belt as well. However, I can't for the life of me get the crank pulley to stop turning while attempting to remove.
I tried using both small and large screw drivers in the harmonic balancer, didn't work. Is there an easier way to do this? If this requires air tools, I may skip doing it.
You can open up the inspection cover on the transmission and put a box wrench on one off the torque convertor nuts. When you try to remove the screws from the pulley it will wedge the wrench against the tranny housing preventing it from turning.