WHAT KIND OF REAR IS IN IT? I THE SAME THING HAPPEN. I HAVE 12 BOLT WITH FOUR LINK. I HAD TWO PEOPLE ADJUST THE CAR AND THE SAME THING HAPPENED. THEN I HAD SOMEONE SCALE THE CAR AND HE FOUND THAT AXLE TUBES WERE TWISTING. WE WELDED THE TUBE ALL THE WAY AROUND AND MADE NEW PLUG WELDS .NOW IT GOING STRAIGHT EVERY TIME AND IM BACK TO 1.29 60 FT.