Yukon Gear & Axle YA WGM14T-30-42 Chromoly Axle ShaftAxle Shaft Chromoly Axle Shaft Chromoly Axle Shaft; GM 10. 5 in. 11. 5 in.; 30 Spline; 42. 2 in. Length; SPECIFICATIONS: WARNING CA Proposition 65: No FEATURES: Fits GM 10. 5 in. 14 Bolt Truck And GM 11. 5 in. 30 Spline Cut To Length Design Fits 38. 2 in. 42. 2 in. Applications 4340 Chromoly Yukon high performance axles are built with high tensile strength 4340 chromoly, use superior production methods that include cold roll formed splines, and