mikes xs steering head bearing install question

[jolo9534]

hi guys so i got a set of steering head bearings from mikes xs. i got the races mixed up and i dont know which one goes in the bottom. i can tell which bearing goes where, but the races look identical to me one has 48ks stamped on it and the other saysb48ys. any info would be awesome thanks

 

[5twins]

This should help .....

 

[jolo9534]

perfect thanks