So i have a 1987 ranger 2.3L 5 speed 57000 original miles. today coming home from work she suddenly jerked a few times, slowed down, i tried to speed up but just heard a whinding sound. I wasn't getting anywhere so i pulled over to stop the honking from the cars behind me. i pumped my clutch when stopped and had pressure the last 2 inches of the throw. i didnt want to push it home, so i tried to drive and it worked. but on the way home it happened again.... is this a slipping clutch? throwout bearing flywheel? when i bought the truck last year i was told it had a new clutch, which i highly doubt now. Please help me!