bearings

well the title pretty much says it all. my bearings went out in the rear on my 92' 250x, so I went to ebay and got the OEM whole carrier assembly, went to go take the axle nut out so I could slide the axle out, but I can't get the freakin circlip out.:icon_cussing: any tips on how to easily...

The bearings in my swing arm are shot. And i know its not fun at all to take them out and change them. So im looking at changing it out with a differnent one. Would a 400ex one extend it at all? Or do i have to get a 250r or 450r one? Either way it needs to be changed so i need any information i...