Making the step up from a 8.5 to a strange s60 rear axle and i KNOW i'll need to shorten the driveshaft. can i measure from the centerline of the axle, to the center of the pinion yolk on the rear, subtract the difference and have the driveshaft shortened that much? also, is there a conversion U-joint from the stock size of the GN d/s to a 1350 u-joint? lastly, anyone know of a place in the beaufort/savannah GA area i could get this done :-k