Transmission arms

Will_H#24 said

I was under my 69 Dart 340 4 speed today and found 2 of the 3 shift arm nuts loose. Are they suppose to have lock nuts on them?

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I use grade 8 nuts, grade 8 flat washers, blue Loctite, and torque to 210 inch pounds. No problems. I won't use the serrated nuts and they were not factory on older transmissions.