This GPM kit is specified for the Traxxas Slash 4X4 and Slash LOW CG 68086-21 and pairs front and rear aluminium dampers with rally tyres to raise stability margins on low CG chassis. Critical dimensions are maintained in the specification: shock cylinder diameter increased to 13.8mm from 12.8mm, coil length lengthened from 1.5mm to 2mm, and a 4mm shock shaft improves axial stiffness and service durability under repeated loading.