ok heres the situation - driving along flat road about 25-30mph and all of a sidden here clunking noise from rear of car then fast clunking noises. pull over, nothing dragging /hanging from the underneath. start again and more clunking when off the throttle ( coasting) then.. disaster strikes left rear wheel locks up completely. Now getting really worried about even making it a couple of miles without something even worse happening. Any how make it home gingerly and pull left rear wheel suspecting brake caliper seized - chock car and put tranny in neutral/ disc spins freely and there is good amount of pads left .Inspect everything I could see safely without jackstands and nothing looks broken / shocks -springs etc. BTW parking brake works ok. Replace wheel and road test car carefully -result same symptoms fast clunking sound at about 25-30 mph - don't dare drive further so it's parked. Anybody have a guess on what's happening here
bearings- differential? or?

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1984 300D Turbo - 231k....totalled 11/30/07 RIP