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🧾 Overview
The TeraFlex Dana 44 / Tera44 HD Differential Cover Kit is a heavy-duty axle protection upgrade designed to reinforce your differential housing and protect critical drivetrain components from trail damage.
Constructed from over 3/8" thick high-strength ductile iron, this cover is built to withstand extreme off-road abuse from rocks, debris, and obstacles. It not only protects internal gears but also strengthens the axle housing to help maintain proper gear alignment under heavy load.
With a durable powder-coated finish and recessed hardware design, this cover provides long-lasting protection while maintaining a clean, functional profile for off-road use.
✔ Heavy-duty differential protection for Dana 44 axles
✔ 3/8" thick ductile iron construction for extreme durability
✔ Reinforces axle housing under load
✔ Protects gears from rocks, debris, and trail impacts
✔ Direct bolt-on upgrade with included hardware
🛠 Installation
- Direct bolt-on replacement for factory differential cover.
- Requires draining and refilling differential fluid.
- Estimated install time: ~1 hour
📌 Specs
📌 Key Features & Benefits
- 3/8" Ductile Iron Construction – Built to handle extreme impacts and off-road abuse.
- Axle Housing Reinforcement – Adds structural rigidity to help maintain gear alignment.
- Trail Protection – Shields ring gear and internal components from damage.
- Recessed Hardware Design – Helps prevent bolt damage from rocks and obstacles.
- Integrated Fill & Drain Ports – Simplifies servicing and fluid changes.
📘 Specifications
- Brand: TeraFlex
- Product Type: Differential Cover
- Axle Type: Dana 44 / Tera44
- Material: 3/8" Thick Ductile Iron
- Finish: Black Powder Coat with Red TeraFlex Logo
- Weight: Approx. 12–13 lbs
- Mounting: Bolt-On
- Hardware: Included
- Installation Type: Bolt-On
- Sold As: Kit
📦 What’s Included (What’s in the Box)
- Differential Components
- (1) HD Differential Cover
- Mounting Hardware
🛡 Warranty
- TeraFlex Limited Lifetime Warranty
⚠️ Fitment Notes
- Dana 44 Axle Equipped Vehicles
- Common Applications Include:
- Jeep Wrangler JK (2007–2018)
- Jeep Wrangler TJ / LJ (1997–2006)
- Jeep Wrangler YJ (1987–1995)
- Jeep Cherokee XJ / Comanche MJ
- Jeep Grand Cherokee ZJ / WJ
⚠️ Fitment Notes
- ❗ Designed for Dana 44 and Tera44 axle housings only
- ❗ Fits both front and rear Dana 44 applications
- ❗ Some vehicles may require clearance checks (track bar, steering components)
- ❗ RTV sealant or gasket required (not always included)