All the 70's classics were usually death traps waiting to spring......even my own van with its new brakes and hydraulics still went for a rear wheel lock-up side skate in an emergency brake incident at low speed.....I cut my teeth as a mechanic on cars that vintage and no matter what you did to adjust the brakes, a rear wheel lock up would always seem to occur somewhere. I remember seeing XA-XC fords putting on the best show, they would hit everything else but the thing they were avoiding. Holdens and Valiants to a lesser degree.