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Read articles →This is a narrow, problem-specific repair video, not a general tractor overview: an owner fixes wheel studs on a 14-year-old L3400 after a tire shop stripped/spun them in. He shows the weld-a-nut trick to extract stuffed studs, the exact thread size (14x1.5mm metric), tapping/chasing the threads with cutting oil, and reinstalling with anti-seize. Useful mainly for L3400 owners facing this specific stud problem, not general shoppers.
Posted by the 3 Minute Flight Instructor channel, an owner sharing a hands-on DIY fix from personal experience, including his own mistakes.
The thread size is 14 by 1.5 pitch metric.
Weld a nut onto the stud to give it something to grip, then use a lever to back it out without it spinning.
Clean threads well, use cutting oil, install round side out and flat side in, add anti-seize, and they should go in finger tight.
A tire shop ran the studs back in with air tools without chasing the threads first, stuffing the studs on both sides.
