1981 Cutlass Supreme Brougham - I got 22” Telescopic cylinders for the rear and a slip yoke I’m about to get mount to the drive shaft but I read a couple post with people saying to shorten 1” and some say it’s unnecessary. Is it necessary to put a coil for the spline? Any pics of some g-body’s with this high of a lock up? Also how do I go about remounting the trailing arms? Thanks in advance!!!