Hey everyone... been lurking around for awhile and decided to join. I just picked up a 300ex frame and want to do a ground up build. How can I identify what year the frame is. Does it matter. Are they all the same? Thanks for your help!

 

they are all the same.. parts are interchangeable from year to year.. 93 and up .. even most of the 250x parts from like 86/87 up to 92 will work.