A little trivia....

[Bob]

True scenario....
Transmission swap, (slapstick swap) for Tom.
1971 440 with a 727 attached.
Sold engine to Tom. Kept 727.
Removed my 727 from my 1974, 400.
Installed 1971, 727.

Ok, here it is.....why did I have to remove the 1971, 727 transmission from my 1974 Charger?
And what did I do to correct the problem?

Bob

[hemigeno]

Were the Torque Converters different between those years (externally balanced)?

[Bob]

Were the Torque Converters different between those years (externally balanced)?

Bingo Hemigeno . Flex plate to torque converter did not line up, internally balanced verses external.

Luckily I only had to tilt it down and swap them. The shift and kick down arms had to be swapped also.

Besides you, there were a couple others I thought would pick up on it right away.
Age increases, memory decreases.

Bob

http://books.google.com/books?id=6JIHWWW5AS8C&pg=PA33&lpg=PA33&dq=mopar+engines+ballancing&source=web&ots=6RYZ-D1RvU&sig=iDbJUPcg648tlX720u5FbromuL0&hl=en&sa=X&oi=book_result&resnum=4&ct=result#PPA32,M1

[dpm68]

Age increases, memory decreases. smilielol

Oh yeah, I forgot about that...

[moparstuart]

good thing it didnt bolt up because it could have caused you some serious balancing problems

   

[Bob]

good thing it didnt bolt up because it could have caused you some serious balancing problems

   

Serious is not the word for it.

[hemigeno]

Were the Torque Converters different between those years (externally balanced)?

Bingo Hemigeno . Flex plate to torque converter did not line up, internally balanced verses external.

Luckily I only had to tilt it down and swap them. The shift and kick down arms had to be swapped also.

Besides you, there were a couple others I thought would pick up on it right away.
Age increases, memory decreases.

Bob

http://books.google.com/books?id=6JIHWWW5AS8C&pg=PA33&lpg=PA33&dq=mopar+engines+ballancing&source=web&ots=6RYZ-D1RvU&sig=iDbJUPcg648tlX720u5FbromuL0&hl=en&sa=X&oi=book_result&resnum=4&ct=result#PPA32,M1

Looks like I guessed right...   

Glad you didn't tear anything up, Bob!