[BluFin]

Searched threads for similar issues and came up empty.
I have a 2001 C2 Cab.
After a car wash (in a hurry and went through a car wash instead of home) I got a rather nasty clicking/binding noise from the right rear. It only happens when I am coasting or not under throttle. When under throttle it disappears. It got louder as I drove it. It is parked for now. It is not louder when going faster. Same level whether creeping through a parking lot or going down the road. It really sounds like something is binding and when I push the throttle is subsides…like the “pressure” is calming it down.

Now for history: 98k on the odo, gt2 clutch, lightweight flywheel, and IMS done two years ago at 60k on odo. I had the car recently aligned to take out the extreme camber. She is a DD for me. The toe in the right rear couldn’t get to where the left was. Not huge but difference. I had the both rear control arms replaced due to bad bushings. New rear tires 700 miles ago. The car drives straight as an arrow, accelerates without issue, no clunking in decel or accel (mounts replaced when I did the clutch/IMS/flywheel).

Thoughts? CV boot, wheel bearing…anything? I’m wondering if the carwash was the culprit. When entering, it had an undercarriage spray that I tried to get through quickly but I fear not quickly enough.