4" x .065" steel shaft, Mark Williams forged 4130 weld yokes, and lubed for life 1350 series u-joints
MasterLine driveshafts are custom built from 4" x .125 6061 aluminum tubing and include the MW Billet Trans. yoke of your choice.
MasterLine driveshafts are custom built from 3-1/2" x .125 6061 aluminum tubing and include the MW Billet Transmission yoke of your choice.