Originally Posted by LS1ROPER
NEW CLUTCH,REBUILT TRANS,UP SHIFTS GREAT BUT WHEN YOU DOWNSHIFT FROM FIFTH TO FOURTH IT JUMPS OUT OF GEAR.ALSO,SLOWING DOWN IN FOURTH IT WILL JUMP OUT OF GEAR.EVERYTHING ESLE IS FINE JUST SPITTING OUT OF FOURTH GEAR.TRIED MOVING GEAR STOP BACK ON SHIFTER IN FOURTH & BLED THE CLUTCH SYSTEM OF ANY AIR BUBBLES! DONT KNOW WHAT ESLE TO DO.
i have a few obvious things but worth checking
check the linage,is the trans case lined up properly and tight?
was it professionally rebuilt?