I'm trying to locate one or more suspension noises on my Gen1 LWB (1990). Basically it makes a "thunk" under several different circumstances; I suspect it's all the same noise, but I'm not sure since I have yet to locate the source. The circumstances:

-Starting from a stop I hear the thunk as something seems to move backwards. I also feel it with my right foot on the gas pedal;

-Stopping at low speeds, a similar thunk that would seem to be the same thing going back forwards;

-When turning a corner at low speeds (e.g. in a parking log) specifically to the left;

-When going over a bump, seeming to come from, more or less, the right rear of the vehicle.

This seems to be more pronounced in cold weather (cold being < 60 degrees, which is what passes for winter around here). Like I said, if I had to locate it it would be on the right side, and seemingly more towards the back than the front. But I can also feel it with my feet on the floorboard, especially the right one that's at the gas pedal.

I've just replaced all four shocks (KYBs) and the bushings on the front sway bar. Suspension is all stock and most of it is still original.

I've tried getting underneath and grabbing and shaking various things, but nothing wants to move when I'm under there. Any ideas what are the most likely candidates for this kind of noise? Any suggestions as to how best to locate a noise that I can't readily reproduce by grabbing, shaking or jumping on the bumper?

thanks,
steve