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Rear end clunk

Over the last couple of weeks I've noticed a clunk whenever I drive over 1 specific bump at relatively high speed. After digging around under the car and inspecting most of the suspension components [including checking torques on almost all bolts] I noticed evidence of contact between the differential housing and the diff fluid reservoir [Bob's] I put in over a year ago.

Not sure why I never noticed anything until recently, but after removing the reservoir and driving over the bump at speed I found this eliminated the clunk. I then bent the support arms on the reservoir to give me more clearance and the issue seems to be resolved. Just posting this in case anyone else runs into a similar problem. It took me a couple of hours to find the cause of the problem and about 15 minutes to fix it.

I'll also add a small description in the thread on how to install the axle reservoir.
 

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