Hey I am from Iowa and I own a 95 EXT 580 EFI 121"and my brother has a 94 EXT 580 EFI mountian cat he is putting a newer skid under his and making his sled longer and making his own tunnel extention and I want to take his old skid and the tunnel extention off his sled and make mine a mountian cat. is it possible? And my second Question is My front left shock is really soft and I think it is blown out I am going to be able to ride out the year but i have to get new shocks for next year. Can i put fox shocks out of a newer Arctic Cat in my sled?

The newer shocks will probably be too long. You want the Fox Shocks from a ZR of similar vintage to your sled. If you really want to change your rear suspension consider going to a newer skid frame with the TSL. The long travel TSL skid frame is the best upgrade I have done to my 94. Swapping your bothers stuff over will work to give you a longer track.

hey i am going to try and get a newer rear suspension what holes do i have to drill and where to make a 99 zr 600 suspension work and wgat other mods would be a good upgade for my 95 ext 580