Transmission /hydro static not engaging.

Cubcadet LTX1045 . Transmission will not go forward or reverse .

The lever in the back that you pull in order to push the mower. Doesn't matter if it's pulled or not I can still push it. So I checked and it's hooked up and the other linkage is all in place. Drive belt is almost new.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0