Hey I have a 1995 f150 XL 5.0 auto It's supposed to be 3 speed plus OD so 4 speeds total. But If I barley give it gas I can feel it kind of slide into 2nd gear then barley feel it go into 3rd, then it goes into 4th at about 30 mph and around 40mph I swear I can feel it shift again like it goes into 5th. Is this maybe the torque converter? Im kind of confused.