96 4R70W Torq Converter

[Strike2]

When installing a Torq converter other than clicking it into the transmission 2 or 3 clicks to fully seat it, is there any other items to check? My engine builder is leaning towards a torq converter malfunction or it pushing the crank causing bearing failure. only think I know is that when I mated the engine to the transmission it was smooth and needed no forcing what so ever. The torq converter was new purchased from Branting, I even had it cut open by them to inspect and all is good. All the bearings, crank are shot. Although he does admit that I shouldn't have gone 3K+ mile if it was installed correctly.
Its a 75 block with a 96 4R70W transmission.

[Mr. Lav]

Do you have the spacer plate in between the engine and trans? If the plate is missing it might put to much pressure on the crank or the trans pump. Just a thought.

[Strike2]

Do you have the spacer plate in between the engine and trans? If the plate is missing it might put to much pressure on the crank or the trans pump. Just a thought.

Yes I'm using the original aluminum plate that was removed from the donor 96 Explorer, the discoloration/hot spot was not present at the time of install Thanks for the feedback!