I was doing alot of reserch and found out that ex 400 shocks bolt right up on a lt 250r quadracer. I know it will work but there about an inch longer. I found out a raptor 660 has the same lingth as the quadracer but Im not sure if it would bolt up.

 

Well, I can tell you for sure the rear shocks are not interchangeable. As for the front shocks, I'm not sure.