Jeep Wrangler & Gladiator Axle Breather Upgrade — The Fix Jeep Should’ve Done (DIY Guide – Part 2)

👇 See below for the full list of oil, filters, and tools you’ll need to do this yourself. In this Part 2 of the Built to Breathe series, I walk you through upgrading and extending the factory axle breathers on the Jeep Wrangler JL/JLU and Gladiator JT. The OEM setup is short, exposed, and vulnerable—especially for water crossings, mud, or extended off-road use. Chapters are listed at the bottom so you can skip to any section. This video covers: • The correct way to extend and upgrade your axle breathers • Hose sizes, fittings, clamps, and sintered bronze breathers • Routing tips to avoid heat, kinks, and pinch points • Optional manifold setup for redundancy/fault tolerance • Zip-tie and frame-routing tricks Whether you tow, rock crawl, overland, or daily your Jeep, this upgrade keeps water and debris out of your axles—and gives you peace of mind on and off the trail. 🛠 Parts list: Sintered Breather Vents(these work great) - https://amzn.to/4jDSSXB (These are the vents I replaced the Gore caps with) NOTE: A sintered-bronze breather is not waterproof. Splashes are fine, but submersion—especially as a hot axle cools—can possibly draw water through the porous bronze. An extended breather mounted high above the expected waterline is the solution. 45-Piece Fender Flare Clip Set for Jeep – https://amzn.to/4jxIelf I’ve tried at least four different brands from Amazon for replacing fender clips, and these are the best I’ve found so far. I even updated the links in my other video to use these. They’re much more affordable than the Mopar clips and, in my experience, they get the job done just as well. Brass Hose Barb Fittings - https://amzn.to/4puEa6F 1/4” NPT Female → 5/16” Barb, includes stainless clamps (Used for adapting the diff/TC/trans lines to the sintered vents) 5/16” Hose - https://amzn.to/4qfT5T9 Plenty if you’re routing the rear diff breather up into the taillight area. If you plan to run the rear breather hose all the way to the front, you’ll want 3/8” (https://amzn.to/4jVr8xX) or larger diameter hose and a longer length. In my experience, the rear taillight area is the best location for relocating the rear breather — and I break that down in detail in Part 1 of my breather video. Zip ties - https://amzn.to/4qHGU1m Optional (if you want to manifold): Dual-Row Air Manifold - https://amzn.to/4qRd8aE 📊 Want the actual factory service manual docs, tables, and spreadsheets used in my videos? I’ve made them available so you can reference the source material yourself instead of guessing. 👉 Request access here: https://docs.google.com/forms/d/e/1FA... 🔐 Access is granted to verified channel subscribers. How to get verified: 1. Subscribe to the channel 2. Leave a comment on this video saying “Access” (or “Requesting access”) using the same YouTube account 3. Submit the form above Once I verify your subscription, access will be granted. ⚠️ Note: If your subscription is set to private, I may not be able to see it unless you leave a comment. 📌 Check out Part 1: Built to Breathe — Fixing Jeep’s Hidden Weak Link:    • Built to Breathe — Fixing Jeep’s Hidden We...   📌 For front fender removal & installation, see my “Replacing Jeep Wrangler JL O2 Oxygen Sensors” video at the 5:44 mark:    • Replacing Jeep Wrangler JL 02 Oxygen Sensors   📘 Chapters: O:00 Introduction 0:24 Tool & Parts 1:25 Option 1: Relocating rear differential breather into taillight 13:44 Option 2: Relocating the rear diff breather into the engine bay 16:44 Relocating front diff breather 18:50 Assembling the 5/16” barbed NPT fitting to the sintered bronze breather 19:41 Relocating the transfer case breather 23:24 Transmission hose breather 24:34 Final thoughts — plus how to add redundancy (fault tolerance) with a breather manifold If you found this helpful, don’t forget to like, subscribe, and drop a comment. More Jeep DIYs, towing tests, and trail content coming soon! This video may contain affiliate links. If you choose to use them, I may earn a small commission at no extra cost to you. I only share products I actually use and trust — and I buy them with my own money. If I ever show something I don’t recommend, I’ll always call that out. Thanks so much for supporting the channel!   / injeepious   #JeepWrangler #JeepGladiator #WaterCrossing #offroad #DifferentialBreather #injeepious