85 250r swingarm bolt in an 83 frame?

[freestylejunki3]

does anybody know if a swingarm bolt from an 85 R can be fitted into an 83 R frame (are they both the same length?). I know the ends are different but i was thinking of just adding the foot brake off an 85 as well. What do you guys think?

[freestylejunki3]

better yet, any body know where i can find an 83 250r swingarm bolt and just eliminate all modification to begin with? I have searched ebay and everywhere else i can think of. Found one for the 81, 82, 85, 86....of course i couldnt find one for the 83-84...lol
Thanks,
-Chris