My 4speed locked up on me othe other night from a night of hard shifti and me and a few friends took it out and opened up the side cover.. we noticed that there was only 1 ball bearing that was part of detent on the 3-4 shift mechanism..the other side for the 1-2 shift looks like it was missing..could this be part of my problem the the trans locking up on me?..

everthing else looked clean and no scoring or chewed up sycros...

thanks for any help!