Evinrude 4906B 4HP 1969 Owner's Manual page 303

8-44 LOWER UNIT
of a on are
Exploded drawing typical manual shift lower unit installed 35 hp and 40 hp engines. Two propeller shafts
a
shown. The second shaft with the two balls and spring may be installed as conversion. This new type shaft
parts are separate
arranqment holds the shift dog more securely in all gear positions. Conversion available as items.