I have a full tube chassis built in 2001. It has 2000 Polaris style Holz front suspension, 2001 Polaris based Holz rear suspension,Swenson Machine belt drive, 166 ported polaris track, simmons skis, 2005 injected cat 900 with Struther's porting and SLP twins, Boondocker box... Sled runs very well, and is very dependable. It was my main sled til 08, and has been a backup sled since then. I've ridden it twice in the last three years, so it's time for it to go. $3,850, 208-602-6126, and thanks.