My atvs a 1992 polaris trail boss 250 i need a arm shafts but there discountinued for the 92s can i use the a arm shafts off a 1993 polaris trail boss 250 are they the same does some one have a 1993 polaris trail boss 250 here that can mesure it??? does any one sell them aftermarket??

The '92 is kind of in a ball park of it's own when it comes to the front suspension parts. Some of the parts interchange with earlier years, some with the later years.
I'm pretty sure EPI makes a "kit" to replace bushings for the A arms

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'02 Sportsman 500 Freedom Edition
'02 Sportsman 700
'88 Fourtrax 300 4X4

You can get some hard round stock cut it to the right length and cut threads on it.

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2002 500 Scrambler w/ITP wheels,Polaris yellow primary spring with a TEAM roller secodary ,White Bros pipe,K&N filter,HPD shock covers HPD chain tensioner.HPD airbox mod 2003 330 Trailboss EPI pink primary spring,Aaen blue secdary spring (wifes) 2001 250 Trailblazer-HPD pipe&clutch kit,ported and chain tensioner,K&N filter, ported with wiseco piston. 2001 Yamaha Warrior- WB pipe,K&N filter,Dynojet kit. (sons)