Trouble with my 65 mustang trans please help me!!?
check your trans modulator on or near the rear of the trans
it has a vacuum hose connected to it ,,make sure there is vacuum,,inspect if there s oil on the hose ,if it has oil replace the modulator...will cause the same symptom on your third but not on releasing from third,,but it may help!
trans cable linkage is for oil pressure,harsh or soft shifting,
if you don't want the way it shift adjust the linkage