I had this on my 109. One of the bulkhead out riggers had rotted at the top. Over bumps the outrigger was under strain as the axle tried to twist the chassis this then allowed the whole bulkhead to flex a little.
New outrigger and no creak.
That is if you can hear it just under one of the floor panels.
New outrigger and no creak.
That is if you can hear it just under one of the floor panels.