Assembly made from 75428-3 casting matl 356 aluminum specification qq-a-596 cond t6 comp b; consists of p/n 75059 bushing 1ea, p/n 75428-7 cover 1ea, p/n s8152n6-0-180 pin 2ea, p/n 626-502-9002 lockring 4ea, p/n 682-510-9001 stud 4ea, differs from p/n 75428 by spotfacing a 0.225 in. Hole on the oil in side