Overview Reviews Product Description Ring and Pinion - 4.56 Ratio - 27 Spline Pinion - 3 Series - 7.5 in / 7.625 in - GM 10-Bolt - Kit Product Videos Custom Field Product Reviews Write a Review Write a Review × RICHMOND 4.56 7.5in 10 Bolt GM Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *