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Read articles →This is part 6 of an owner's ongoing repair series on a JD 4300 with a stuck forward/reverse shift lever. It's a real hands-on teardown: removing body panels, pulling the shift lever and universal joint, identifying three failed parts (a worn lever, a broken pivot pin, a busted detent plunger) with actual John Deere part numbers, then reassembling with Loctite and testing. Best for owners diagnosing similar shifter lockup or jerky shifting issues.
Posted by the mars1952 channel, an owner documenting his own DIY repairs on a previously stolen-and-recovered tractor, not a dealer or professional mechanic.
Three parts failed: a worn aluminum lever, a broken universal joint pivot pin, and a busted detent plunger whose ball bearing popped out, which jammed the shifter.
Remove body panels held by Phillips screws and nuts, then unbolt the shift lever using two 13mm bolts, holding the uncaptured nuts with a wrench underneath the steering column.
The lever is M134415, sold with a spring and roll pin. The detent plunger is M135335. The universal joint pivot pin is LVA10317U.
No, the linkage fix solved jerky shifting and clutch hang-up, but the tractor still makes a squawking noise in reverse that it had since purchase.
