Don't suppose you have some better pictures of the front end? Dr. Squidd's going to need them to diagnose the problem!
There are several things that could affect your handling characteristics around the corners... caster or camber, toe in or out, kingpin inclination, tire pressures, tread pattern, wear factor on the tires, and even weight transfer if you locked the rear end. If you locked it, you may need to transfer weight off your inside rear tire otherwise you're going to develop a push through the corner because both rear wheels turning at the same speed are going to have a tendency to drive you straight forward, and they're larger and have more weight on them.