TF904 w/ lockup shift issue

oh crap kim....thanks for the good call....the servo rings are cast iron i do remember that. Also the bore wasnt scarred or rough at all, however that doesnt mean they couldnt be leaking. 100 in. lbs, thanks fishy ill jot that down too. I recently acquired a "shift correction kit" from the mid 80s sold through napa, now discontinued, that has detailed instructions to tweak the valve body. New check balls for some spots, a couple holes drilled here and there, new springs, line pressure adjustment specs and whatnots, and new 2nd gear servo seals. in the destructions they said to take 400-600 grit sandpaper and rough up the bore when installing the new rings, and if the bore is marred up, use a ford AXOD input bushing as a "speedi-sleeve" of sorts. im thinking this will be the next plan of attack and hopefully make things more kosher. Any reason this wouldnt be beneficial?