Hey guys! I took the lower unit off of my 1969 9.5 hp Johnson seahorse and did all of the necessary work but now when I try to put it back on, the shifting rod does not want to go up into the little metal jacket thing with the screw in it. If I push to hard then the shifting rod gets pushed back into neutral. Then I've tried putting a screw driver in the space in the metal jacket thing to make the gap where the rod goes bigger for it to slide in but it still doesn't want to go. What am I doing wrong? Any suggestions would be helpful. Thanks!