Strange rattle from rear on 2003 Boxster S

[Southtxfarmer74]

Ok....I Have an update: Replaced both rear axles as the CV joint with the torn boot was past it (was cheaper than rebuilding them) and did the wheel bearings which were making quite a bit of noise. Told the shop to go ahead and replace the IMS since the car was there. I'll do the clutch as well if they think it needs it. With 89K on the clock it has to be about time although it feels fine when I drive it. We will see what develops. At least I don't have to worry about using the engine for a large paper-weight if/when the old IMS bearing finally gives out. I figure it's worth it to go ahead and spend a little now on preventive IMS replacement than to brick the motor and have to spend more than the car is worth for a new engine.