ㆍLight weight and CNC Machined from solid billet carbon steelㆍDesigned for scale and trail trucksㆍBlack finishㆍHeat treatment for durabilityㆍSuper smooth operation (Precision splines)ㆍFully assembledㆍLaser engraved for authenticityㆍFront compressed Length: 123mmㆍFront extended Length: 151mm (Leaves 12mm spline engagement, recommended not to exceed this length)ㆍRear compressed Length: 98mmㆍRear extended Length: 126mm (Leaves 12mm spline engagement, recommended not to exceed this length)ㆍFits Gmade R1 rock buggy and custom truck (5mm output shaft)Note: For one truck, you will need 2 of this product.