Nitro Gear 63-79 GM Vet - 3.90 Ring & Pinion

All Nitro Gears are computer-controlled forgings, forged out of 8620 Steel, fully automated turning, Single pass cut, and then vacuum heat treated, the sum of these processes is the ultimate aftermarket gear. This is a high performance Quiet gear, perfect for any vehicle from Stock and beyond, it will handle the rigors of big tires or high horse power.