What if the drain plug or pan threads are stripped?
Documented on the 1965 Ford Mustang build
Published August 3, 2026
Stop and assess rather than forcing the plug.
Full Answer
Stop and assess rather than forcing the plug. Options include chasing the threads with the correct-size tap, installing a threaded insert (helicoil/Time-Sert), or using an oversize drain plug. These repairs are more advanced and may require specialty tools or a machine shop.
Documented In This Build
Related Knowledge
What oil viscosity should I use for a 1965 Mustang?How much oil does a 1965 Mustang take?How tight should I torque the drain plug and oil filter?How do I tell if the oil change was successful after completing the job?What torque should I use on the driveshaft flange bolts?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?
Related Parts
Engine oil (5 qt)
Mobil 1 (example)$40
Oil filter
Motorcraft (or equivalent)$12
Drain plug crush washer/gasket
$1
Replacement oil drain plug (oversize/standard)
$10
Related Tools
Floor jack
Jack stands
Socket set and ratchet
Shop rags and gloves
Oil drain pan
Funnel
Oil filter wrench
Thread tap / bolt extractor / helicoil kit
Torque wrench
