This splined tube adapter converts a 3/4 x .049 tube to 3/4"-36-spline for use with needle bearing U-joints. Machined male 3/4"-36 spline stud slips into the end of a 3/4 x .049 tube with .650 inside diameter. It is welded in place to match existing 3/4"-36 female spline U-joints.
