Parts & Accessories Spare parts Empty differential suitable for those who want to cancel the differential. The differential fits Yukon, Tahoe, Sierra, and Silverado from model years 2007 to 2014, 4-speed transmission only. I don't know if it fits the 6-speed or not. Features: Car lightness, Stronger torque, Fuel saving, Easy removal and installation, No tuning required, fits exactly like the original. The differential is original factory. Price is negotiable.