[AndrewL]

Thought I'd share an update.

Last time I drove my car I noticed a belt squeal on start-up. I finally got some time to investigate, and after checking belt alignment it's pretty obvious that my Rockauto ac clutch pulley sits noticeably further out than the OEM ac clutch pulley. Kind of embarrassing that I didn't notice this straight away.

Unfortunately I tossed the old clutch so have to rely on photos to compare now..

Left is the OEM clutch taken from the drivers side, right is the Rockauto clutch from a similar position. Note the distance from the black compressor bolts to the inside edge of the clutch pulley.

I suspect the RockAuto backing plate that the pulley fits onto is thicker than OEM ZR-1.

Back to the drawing board for a replacement that fits.