ive orderd up xr 400 .40 springs and need to know the score with the spacer.ive done a search but need it in a nutshell as what to do.the spacers are what,4 or 5 inches long stock.if i bin them how long do i make the new ones because of the longer size of the xr springs.ive had forks apart and took out springs to change oil,was straight forwad using manual,i just need to know the size to make spacers before they arrive so i can change springs as soon as they arrive.thanks guys for any help.