How to Change Transfer Case Fluid on an F-150 (2015–2020) — Step-by-Step DIY Guide

If you own a Ford F-150 (2015–2025), changing your transfer case fluid is an easy but often overlooked service that keeps your 4WD system running smoothly. In this video, I walk through the complete DIY transfer case fluid change on my 2018 F-150, but the steps apply to all 2015–2025 F-150 models equipped with 4-wheel drive. This quick maintenance task helps protect your drivetrain, improve shifting performance, and extend the life of your transfer case — all for a fraction of what a shop would charge. In this video, you’ll learn: • The correct transfer case fluid type for your F-150 • Tools and torque specs you’ll need • How to properly drain and refill the transfer case • Tips to avoid overfilling or stripping bolts • Recommended change intervals and inspection tips This job can be done in about an hour and saves you hundreds of dollars compared to a dealership service. Tools & Materials Mentioned: Mercon LV: https://amzn.to/48nrzx7 Permatex Thread Sealant: https://amzn.to/3KOqlBc Fluid Pump for Mercon LV: https://amzn.to/46VYFBG Applies to: Ford F-150 — Model Years 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 ⸻ 👍 Like & Subscribe for more Ford F-150 maintenance and mod content from Smackey’s Garage. For sponsorship inquiries contact us here - smackeysgarage@gmail.com Check Out My Web Store to Support the Channel: www.smackeysgarage.com Join this channel to get access to perks: https://www.youtube.com/channel/UCJ12Z3lGXAPfXyUHFUo6z8w/join As an Amazon Associate I earn from qualifying purchases Instagram: https://www.instagram.com/smackeysgarage/ All videos are for entertainment purposes only. Attempt these projects at your own risk! If you do, make sure you follow all manufacturers instructions!