68 El Camino #'s matching 327, glide and open rear diff. Installed new axles (Strange), bearings and seals due to a scored axle shaft. Driving the car I have a knocking sound coming from the left axle as the body sways from side to side. Right axle, very little axle end play. Left side more axle end play. Can anything be done to "tighten it up" . It does have the "C" lock axles, 10 bolt, 8.5. open rear.