1957 automatic reverse clunking

[mayman]

Have an issue with my 56 T-bird on when I reverse it it has a clunking sound I don't if I put my brake on hard I bypasses that is there adjustment on that I have checked all my U-joints Transmissions good transmission mounts good we built the whole thing no leaks just can't figure that out when I get ready to put it in reverse or drive it clunks a little bit I don't put the brake down please advise

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[Tom Alpers]

Have an issue with my 56 T-bird on when I reverse it it has a clunking sound I don't if I put my brake on hard I bypasses that is there adjustment on that I have checked all my U-joints Transmissions good transmission mounts good we built the whole thing no leaks just can't figure that out when I get ready to put it in reverse or drive it clunks a little bit I don't put the brake down please advise

What you are describing sounds more or less normal to me. These transmissions don't have as many pressure controls as newer ones do and sometimes will bang into gear.