While I was getting this old transmission freed up to shift smoothly from sitting 30+ years out of my 48 COE, I had the top tower off moving the 3rd and 4th gears by hand I somehow slid it too far or something and this little dog or part (see it on the picture) got out of its position. Is there a trick to get it back in place without pulling it all apart.? Also, this transmission used to jump out of 2nd gear for years, we always had to hold a little pressure on the shift when slacking off on the gas or it would pop out. I wanted to see if I could find a reason for this too while it's apart, Any ideas will be appreciated. Thanks