Recently I have lubed the rear splines during a tire change. The tire was balanced( and rechecked) but there is what appears to be a driveline vibration. I do not see any indexing marks on the rear u joint to the final drive spline although there are some marks mixed in with the numbers on the Final drive spline. Do these two need to be indexed? Haynes manual says save original position But when the boot came apart so were the splines. Any help would be greatly appreciated. Thanks