George, that bell bolts to a LA block. Not a R5. It has enough material to be drilled to fit but still attaches via the pump bolts. It also fits gm trans.

Do you have picture of the R5 JW to 904 bell you had made? By looking at your picks one would assume you are using an adapter plate.

Realizing we have a slight language barrier. I have to ask. Do you understand the topic?

My bells will attach R5 to Reid case flange. No adapters or spacers.

Leon