Can you change stock ball joints?

[4StrokeThunder]

I have a bad lower ball joint on my YFZ 450 and I was wondering if it was possible to replace them or if i should get new a-arms? I know that on some quads you can't replace them, so i wasn't sure. Anyone know anything about it or have done it? Price (per ball joint if possible). Thanks

[HiperEX]

on a yfz the rear balljoint it replacable i belive but you will need the oem style from yamaha

[OBIE]

A STOCK YFZ BALL JOINT CAN NOT BE REPLACED. WE OFFER A COMPLETLY REBUILDABLE BALL JOINT THAT IS ALSO GREASABLE. CHECK OUT www.omiproducts.com (http://www.omiproducts.com) FOR PICS AND INFO.