hey guys i noticed that my 1966 kaiser 2 /12 duce is not ingaugeing the front axles. i pulled a tree over the other day for my dad and only the rear axles are working. the drive shaft is moving that goes to the front axle but the tires are not. is there a way to lock the front axles in? im not familar with the 4x4 sytem on this truck so if any body does please help.