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One day this week I will try and get some pics up but I pretty much killed my 3.25" mustang pulley. It looks like the brass spacer couldn't handle the heat and friction and gave out taking the keys and pulley with it. The good news is that it didn't destroy my impeller shaft. Right now I'm back to the 3.5" pulley until I can have a custom pulley built.
I tried to go cheap with a mustang pulley and spacer, lol. It worked for a while, but its time to pony up and have one made before I tear something more expensive up.