Need help taking off windshield wiper motor 72 RR

[zextrot]

1972 Plymouth RR

Removed three bolts, but bracket wont come off. When I try to pull it off, the wipers jiggle. Is there something else holding onto it, or should I just yank harder?

 

[Nacho-RT74]

Need to separate the linkage from the motor. Remove the wiper crank from wiper motor shaft inside cowl panel. Usually is a 7/16" nut ( or is it 3/8" ?, can't remember LOL )

get the plastic grill off and will see the wiper crank and shaft nut