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🧾 Overview
The TeraFlex Dana 30 / Tera30 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 3/8" thick high-strength ductile iron, this cover is built to take serious abuse from rocks, debris, and off-road obstacles. It not only protects the differential but also adds structural rigidity to the axle housing—helping maintain gear alignment under load.
Designed as a direct bolt-on upgrade, this kit includes all necessary hardware and installs easily, making it a straightforward way to upgrade one of the most vulnerable components on your vehicle.
✔ Heavy-duty differential protection for Dana 30 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 – Extremely strong design built to handle trail impacts.
- Axle Housing Reinforcement – Adds rigidity to help maintain gear alignment under load.
- Trail Protection – Shields ring gear and internals from rocks and debris.
- Bolt-On Upgrade – Installs easily with included hardware and factory mounting points.
- Compact Profile – Designed to minimize hang-ups while maintaining protection.
📘 Specifications
- Brand: TeraFlex
- Product Type: Differential Cover
- Axle Type: Dana 30 / Tera30
- Material: 3/8" Thick Ductile Iron
- Finish: Black Powder Coat with Red TeraFlex Logo
- Weight: Approx. 9.5 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 Warranty
⚠️ Fitment Notes
- Dana 30 Axle Equipped Vehicles
- Common Applications Include:
- Jeep Wrangler TJ / LJ (1997–2006)
- Jeep Wrangler JK (2007–2018)
- Jeep Cherokee XJ (1984–2001)
- Jeep Grand Cherokee ZJ / WJ (1993–2004)
⚠️ Fitment Notes
- ❗ Designed for Dana 30 axle housings only
- ❗ Compatible with both factory Dana 30 and Tera30 housings
- ❗ Some applications may require clearance checks (track bar, steering, etc.)
- ❗ RTV sealant or gasket required (not always included)