Cheers guys , was thinking maybe a spacer or something
![Cool 8)](http://www.radbmx.co.uk/forum/Smileys/smilies/cool.gif)
I'm pretty sure they are both for a OPC , the slotted one came from an '83 Cali .
The other bb is exactly the same other than it has the integrated nut ...thought one maybe an earlier version or something
![Huh ???](http://www.radbmx.co.uk/forum/Smileys/smilies/huh.gif)