Hey y’all, just developed a high pitch squeal from somewhere in the rear half of the car, definitely related to speed, but unaffected by clutch engage/disengage. Squeal starts at around 20 mph, increases in pitch as speed increases, but not in a linear manner; it remains the same pitch until around 40, then jumps to higher pitch. Same during deceleration. Most notably, it suddenly disappears once decelerated below 20 mph (ish). It is also sporadic, but VERY notable when it occurs. Assumption is something along driveshaft, maybe CSB or diff. Any ideas?
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