42RH in 68 Dart advice/request

here are some pics for you to study. 1 is of the tool i made from plastic. the dimensions are on the paper. the others are tools used by mopar techs to rebuild/check clearances. a couple pics are from the factory the service manual. if you need anything else, just ask. last pic is the tool i made and the 6312 tool used in pic 4.

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