The SPICER 43.307" involute 41 spline drive axle shaft is precisely engineered to fit seamlessly in Freightliner and Peterbilt models, designed specifically for their applications. It not only enhances vehicle performance but also ensures efficient energy transmission. Crafted with high-strength materials, the axle shaft maintains durability and reliability under heavy loads. Its advanced heat treatment process extends longevity, even in challenging conditions. Additionally, it minimizes vibration and noise, contributing to a smoother and quieter ride experience.