Need help with radius arm

[demidestructo]

Hi Im a newbie but i cant find this answer anywhere. What is the difference between a set of 93 radius arms vs 95-97 radius arms . On ebay they have a pair that fiits 89-97 and right underneath it says 95-97 only. I can't find ones used for a 97 , and I dont have the cash fr new ones . What would i have to modify to use the 93 version? thanks