anyone know what size the threads are on the front of the pulley (the 3 bolt holes that are used to pull the pulley off). Im installing a new to me but used ASP pulley and would like to re tap/clean up the threads on the removal bolt holes before installation. I know i could call ASP but its already passed 6pm in Texas so they are closed.

thanks

 

Easiest way to figure it out would be to take the one off the car to a hardware store and fit different bolts. Also, the puller usually has multiple bolts with it so they may be in the kit anyhow.

 

The $10 bolt puller set from Harbor Freight has the right size bolts in it.

 

They were 5/16 - 24 NF on the older ones unless they've changed them.

 

My Powerbond used 3/8 fine threads.

Pain in the *** trying to figure that out since I was expecting them to be metric.