Rear end clunk on my TC35 New Holland tractor

This is a real-time DIY teardown of a TC35 with a banging, easy-pushing differential lock pedal. The owner diagnoses the noise, then documents pulling the seat, fuel tank, roll bar, and three-point hitch to expose the rear end, eventually finding two broken gears, sourcing replacement parts by serial number, and reassembling it. It's a long, messy, unscripted repair log best suited to owners tackling their own differential lock failure.

Posted by the Dan Wheeler channel, an owner documenting his own hands-on repair rather than a dealer or professional mechanic.