Do these help?
Where's the groove on the hub of the ps pulley that is used to remove it? That should be to the front.
I think it is possible, but I don't think that you'll get it back off without destroying the pulley if it's on backwards. They are made with a special "ring" (groove?) on the front side of the pulley that's used along with the special tool that pulls them off and presses them back on.Is that even possible?
Feel the front end of the pulley. Right at the shaft. The boss there should have a groove machined into to it. I think your vacuum pump pulley is the same.
The pulley, in the correct application, is usually installed with the shaft flush with the end of the pulley. feel the nose and can feel the shaft inside of the pulley hole?
I see a groove in the last pic. Right around the circumference. That's where a puller grabs it for removal. Looks to me like it is on correctly. Maybe it could go back another 1/32" of an inch. But that big boss on the back looks out of place. Dunno
I looked real quick on O'Reilley's for a 91 ps pulley. They also show a two groove which is weird. The pics they had, it looked like the grooves would sit further back when installed. The pulley they listed doesn't look like yours from their pics
You can see the distance mine is from the bracket. How far is yours?
couldy switch the order of the ps and ac belts while you figure this out?
Don't just accept that wobble. That's too much!
Either the pulley is bent, or the shaft is. You need to figure out which.
If the pulley replace it. If the shaft, replace the entire thing.
Really leaning towards replacing both the pump and the pulley. Thanks to all of you for your input and I am sure I will find other things to ask about when I have more free time to go over this truck. For instance why the fuel gauge sits way above full.