No, that'* normal. When you turn the pulley back and forth, how much slop before you feel resistance? That slop is coupler wear.
When I changed mine at 75K (strictly to document it for the club) it had the beginnings of wear. I'd buy 100k. 75k would be preventive maintenance. But alot dependso on how hard the car has been driven.
I've got a series I and ordered the coupler, then took the alternator off and found out that I need to remove the supercharger to get to the nose. How long did this take you guys? I get a little nervous messing with the fuel lines and injectors, so I might just have a friend do it if it'* gonna be complicated. If it wasn't my main car, I'd tackle it, however.