help with rear wheel bearings

[Kemo]

all,

im replacing the rear wheel bearings on a 1984 Carrera and it seems that one side is different than the other. i checked the part number in question and its a 9113315140R. i ordered two bearings for the 84 and then discoverd that the bearing in that one side did not fit. i always thought the bearings were the same from 74-89. what is the correct rear wheel bearing for that control arm??? is there a chance an oversized bearing was used? is that even possible? i measured right at 83mm outside diameter of the big bearing. the othere side was 80

thanks!

[75 911s]

Should be

https://www.pelicanparts.com/More_Info/99905302001.htm?pn=999-053-020-01-OEM&bc=c&SVSVSI=0583

999 053 020 01

The number you mentioned is the control arm casting number. I assume you have stock 84 control arms. Whats the part numbers on the bearings you bought?

[Kemo]

i have determined that the trailing arm was modified with a bigger bearing...i got a line on a good used one and going that direction.

the part number listed is indeed the casting number for the banana arm. i can check the bigger bearing to see if there is a part number. but i would rather stick to stock as the metal is really thin on the flat part where all the e-brake parts need to go.