Have a used rear drive shaft off my 1990 K5, 241 with SYE kit and 4" TC Lift. If I remember right measurement at ride height was 36" center to center u-joint. CV is 1310 I believe, and the yoke is 1350. CV is smooth with no slop or play at all but the yoke has slight play at the splines. I recently just pulled this off my blazer and did not notice any vibrations until over 60mph on the highway. Really do not want to ship but I can try and work something out. $100.