All that has to be done to prove out the flexplate being the source of the noise is to remove the bolts that hold the converter to the flexplate then push the converter back towards the trans to give a 1/4" or maybe more clearance.
This will unload the flexplate and if you then start the motor the noise should be gone unless the flexplate is hanging together by a thread.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
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