No, the 1-2 accumulator is for the shift from 1 to 2, the 2-3 accumulator is for the shift from 2 to 3. That is the condition most of us find the 1-2 upper spring in when doing the J-mod. I believe that is the reason the mod lists the additional lower spring to help prevent it from happening again. If I'm wrong someone please correct but that is my understanding from the tech articles.
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