Do I need new U-joints when installing an aluminum driveshaft?
Documented on the 1965 Ford Mustang build
Published June 20, 2026
You should inspect the U-joints and replace them if there is play, noise, or visible wear.
Full Answer
You should inspect the U-joints and replace them if there is play, noise, or visible wear. Many installs use new U-joints to ensure reliability; some replacement driveshafts include U-joints—verify with the supplier.
Documented In This Build
Related Knowledge
What torque should I use on the driveshaft flange bolts?Will an aluminum driveshaft cause vibration?Do I need to shorten or modify the driveshaft for my '65 Mustang?Is an aluminum driveshaft safe for a high-power street or race car?What safety steps should I take before starting?How should I protect and organize the new wiring?Can I keep the original radio and still add Bluetooth?Can I use an F100 driveshaft in my '65 Mustang?
Related Parts
Aluminum driveshaft (one-piece or two-piece depending on model)
$900
Universal joint kit (U-joints) - rear & front if required
$60
Driveshaft flange bolts / hardware kit
$20
Related Tools
Torque wrench (ft-lb)
Floor jack
Socket set and ratchet / breaker bar
Pry bar / flatbar
Safety glasses and gloves
Marking tool (paint or scribe)
Jack stands (pair)
