model # HELP

Hello all,
been awhile since my last post. I can usually find help or answers by doing a search and reading, but not this time. I’m in model number hell and need your expertise in the matter.

I have a Yellow 2004.5 sportsnman 600 model A04CH59AL, I bought 2 brand new in Sept 04.. Need a left rear axle assembly. Called many shops around me and when I read them my model they stumble over the "AL" and can’t find this model. I give them my VIn and they can confirm everything about this ATV but the "AL". I believe the "AL" is only related to body color (yellow) and sticker schemes. I called Polaris tech support to get the OEM number of the axle thinking I can use that to order an axle. Nope, Polaris can not find a OEM number for an axle to an "AL" model. They opened a ticket for me to the Polaris engineer dept, they told me it’d be 7 to 10 days before they get back to me!! CANT I just buy an axle for a A04CH59xx and it’d fit? I did find axles online but vendor wouldn’t garentee fitment because their axles are for AK, AN, AF, but not AL!!!

Researching the 04 models, it seems like…..
early 2004 are A04CH59AF, AH, AJ, AT,AV. and mid-years are A04CH59AL, AK, AN, AW, AQ.
DOES ANYBODY REALLY UNDERSTAND THIS MODEL NUMBERING? DOES THE LAST LETTER MATTER TO ANYTHING OTHER THEN PASTICS?
I’m headed to Wisconsin northwoods in a few days and would love to take my ATV.

Thanks all, sorry to ramble on but….