What welding precautions are important?
Documented on the Driveshaft build failure but heres how I tried to build
Published June 15, 2026
Use the proper welding process for the material (MIG or TIG as appropriate), control heat input to avoid warping, tack in multiple locations, and ensure full penetration and good weld profiles.
Full Answer
Use the proper welding process for the material (MIG or TIG as appropriate), control heat input to avoid warping, tack in multiple locations, and ensure full penetration and good weld profiles. Poor welds were highlighted as a likely contributor to failure.
Documented In This Build
Related Knowledge
What caused the driveshaft build to fail?Can I reuse stock U-joints and flanges from another shaft?What would I do differently on a retry?What torque should I use on the driveshaft flange bolts?Can I use an F100 driveshaft in my '65 Mustang?What size U-joints do I need?How do I determine the correct driveshaft length?Do I need new U-joints when installing an aluminum driveshaft?
Related Parts
Fasteners (flange bolts, nuts, lock washers)
$15
Driveshaft tube (steel)
$120
Slip yoke / tailshaft yoke
$60
Universal joints (U-joints, set of 2)
$40
Flange / output yoke
$50
Center/carrier bearing (if 2-piece)
$45
Balancing weights / adhesive weights
$30
Related Tools
Torque wrench
MIG/TIG Welder
Drill press
Angle grinder / cutoff wheel
Lathe
Dynamic driveshaft balancing machine (or shop balancing service)
Calipers / tape measure / protractor
Press or arbor press
