Overview Reviews Product Description Eaton Automotive 913A315 Detroit Truetrac 30 Spline Differential for GM Truck Eaton Automotive 913A315 Product Videos Custom Field Product Reviews Write a Review Write a Review × Eaton Automotive Eaton Automotive 913A315 Detroit Truetrac 30 Spline Differential for GM Truck Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *