53 Plate L322 Petrol 4.4 V8
When I bought the car, one owner from new, full main dealer history, 98k miles, it had a known gearbox problem (no drive) owner said it was a transfer box problem.
However when inspected the gearbox was removed and refurbished and the torque converter was mashed up and so was the pump, so both were replaced with refurbished ones, so:
Refurbished grearbox, pump and torque converter. at the time he said that he had never seen anything like it happen before. (and he is very well experienced in these gearboxes)
It drove fine, though there was a slight noise sounding like a UJ or a brake disk binding corresponding with about once per wheel revolution, it didn't seem major though.
1000 miles on and with no warning at all, all drive lost - when it went the feeling was just like a blown manual clutch - suddenly no drive whatsoever.
Back to the transmission specialist and he has removed and stripped it - exactly the same as before.

So the question is - what is likely to have caused it to fail?
He has suggested crankshaft end float, though the engine runs as sweet as a nut.
Any ideas please?
Thx

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