Rear suspension has a clunking noise which comes and goes. No visible damage. Anyone have similar problems or ideas on what this might be?

I traced the same thing in my recently purchased 1997 4-door 2WD 'L' to cheap aftermarket gas shocks. New KYBs ride smoother and run utterly silent. The old shocks were REALLY stiff and made the handling very responsive, but it had a bone-jarring and noisy ride on rough roads. Good riddance!

Ah yes! I too experience this on my 94 2dr Rav. I have had it checked about 3yrs ago when the sound was barely there and came up nil. The only suggestion made by a Toyota dealer at the time was that a moving exhaust muffler/pipe may be causing it which obviously wasnt the problem since the noise could sometimes be heard whilst driving on a relatively smooth road at slow speeds!

It has gotten worse over the years and I think its about time I tried to solve it again.
Not sure what brand of shocks are fitted on mine and they havnt been changed since I bought the Rav back in 2002.