I'm new to this site and also to polaris products. I recently bought an x10 rear susp. for my machine and was wondering if the x10 had different travel through the years because looking on the"Polaris files" it shows that in 99 they went to a 11.3 inch travel x10. But when I look at a parts fische they both ahve the same shock # listed the 98 x10 and the 99 both use the same shocks and related parts. Was wondering because I really need to know what I have so I can order the right parts when needed. Really appreciate any help.