With years of competition testing and more top place finishes than they can count, Spidertrax stub shafts have quickly become the #1 choice among top rock crawling and rock racing teams. Stub Shafts are the outer shorter part of a front shaft assembly. These Stub Shafts are made using a two-piece design manufactured from 300M and are heat-treated after machining. Please note that Spidertrax 35 Spline Ultimate Stub Shafts are designed and intended to be used with Spidertrax Ultimate and Pro Series Knuckles and 35 Spline Ultimate Unit Bearings. Seals and seal kits can be found here. These shafts are designed to be used with Dana 60 style universal joints, Gigglepin offer CTM and Branik and these can be found here.