My p/s pump is squeaking at the pulley. Since both the pump and pulley are cheap, I'm going to replace both. However, the pump screws are behind the pulley. It looks like I can slide a wrench through holes in the pulley. Has anyone tried this?

The goal is to take the new pump and pulley to an auto store to have them assembled (requires a special tool I don't have) and swap out the entire assembly in my garage.

Otherwise I'll have to borrow the pulley removal and installation tool and take a chance I do it right. Lol!

 

I've never tried it on the Hummer but normally there are holes in the pulley that you can fit a socket through to get to the bolts.