Front wheel bearings! What am i missing?

1968 barracuda 440
8 3/4 rear sure grip 727
front 73 A-body big bolt pattern disc brakes.

so after years and years of great enjoyment my Shark took a dump. (if we are being honest.... Another dump) feels good once we get her fixed and going though. haha
Driving down the 57 freeway felt what i first thought was a flat tire pulled over everything looked good so took the first exit very slowly and cautiously. Pulled up to a gas station inspected the car and everything seemed fine, drove towards my house at slow speed then started to hear a 'clunk clunk clunk' pulled over to another gas station jacked her up removed the front passenger tire and to my surprise my caliper was loose I removed the center cap and notices that what used to be a outer bearing no longer was but a mushed up piece of metal so hot it fused to my wheel spindle.

long story short.

BILL & ED's in Fontana CA has a spare 73 A-body passenger spindle. i will purchase this on the weekend.

BUT FOR NOW.
took her apart and put new bearings. (GRINDED OFF THE ONE THAT FUSED ON TO THE SPINDLE)

Though i have a feeling i missed something because when i finished putting her back together i took her for a drive down the street and because the passenger wheel spins clock wise like the center tightening nut does to get tighter its catching the nut and tightening on the bearing till there is no bearing left. (SMASHED)

what am i missing? i was looking online and there is a washer that i do not have. (spindle lock washer) is this my issue? or am i over tightening the center nut? or are my bearing not pressed all the way in?


HELP please.