Im working on a 91 Amigo 4 cylinder 4x4. Its gets stuck in 1st and 2nd gear. I was able to rock it out of gear by popping the clutch several times until I worked out. I was able to shift through 3rd, 4th, 5th, and reverse. Then when I put it back in first it got stuck again. Im thinking internal transmission issue. I can putt around in first gear no problem. I also drained the fluid, no metal or anything strange in the pan. Anyone else heard if this problem?