Pretty new 700r4 trans. That shifts from 1st to 3rd and revs high to 3
I have a 700r4 behind a blueprinted 355 in my 1949chevy styline. And it was great then one day she started revin high and shifting hard never really slipped just would start in 1st and head up to 3/4000rpm then straight to 3rd now I’m not familiar with automatics and am hopen that’s this is an easy fix.. changed filter and fluid and still actin up.. have a lokar shifter in her and adaptive mount she ran like !&&* for past 2 yrs but tranny had me in the rain-on my bike for the last time! Help a blind man see and or lead me to site that walks me thru trouble shoot and repair this!