My 2009 Assault shares a common problem with Arctic Cats! The slide rails are damaged where the center shock mounts to them. The holes are all wallowed-out where the cross shaft mounts. When I first noticed the design of the lower shock mount, I just knew this was gonna happen. The rear suspension is so stiff, and this sled is marketed as "jumper", something you can really pound when Freestyling, Boondocking. This cheap, simple, lightweight design cannot and did not hold up, as I suspected! So disappointing...