How to Change Your John Deere 425 445 455 Transmission Fluid Change in 3 Easy Steps

This is a hands-on DIY walkthrough of draining and refilling the K91 Tough Torque transmission on a 425/445/455 with four-wheel steer, done in the owner's own shop. It covers the drain plug, filter swap, fluid choice (low-viscosity vs high-grade), correct quart capacity (six, not seven), and refill process, including real snags like slow draining and a dirty filter housing. Best for owners doing this exact fluid change themselves.

Posted by the Florida Deere channel, an owner working on his own tractor and sharing practical, unpolished DIY maintenance steps.