Fitment:
2018+ Jeep Wrangler JL – Rubicon – w/ Gas Engine
2020+ Jeep Wrangler JL – Sport / Sport S / Sahara – w/Diesel Engine
2020+ Jeep Gladiator JT – All Models
2021+ Ford Bronco – Standard on Badlands, Wildtrak, 1st Edition & Squatch Pkg. (Option on other models)
Note: The year and model may not guarantee compatibility. Please confirm whether the axle is Dana 30（M186） 12 Bolts.
Description
OEM stamped covers are thin and vulnerable to rock strikes, leaks, and warping. The Spelab heavy-duty differential cover is engineered for Jeep owners who push their rigs in off-road, rocky, or muddy conditions. With reinforced strength, easy service ports, and superior sealing, this cover protects your gears and keeps you moving confidently on any trail.
Key Features
Heavy-Duty Nodular Iron Construction – Stronger and more impact-resistant than OEM stamped steel covers.
Reinforced Rib Design – Increases housing rigidity and reduces flex during off-road stress.
High/Low Service Ports + Top Fill Port – Makes fluid checking, venting, and refilling easy even when lifted or angled.
Magnetic Stainless Plugs with High-Temp Seals – Capture metal shavings while ensuring a long-lasting, leak-free seal.
Recessed & Protected Bolts – Reduce the risk of bolt damage from rocks or debris on the trail.
OEM Fluid Capacity & Proper Clearance – Maintains factory fluid volume without reducing ground clearance.
Direct Bolt-On Replacement – Installs easily with no cutting, welding, or modifications required.
Specifications
| Item |
Spec |
| Material |
Cast steel |
| Bolt Pattern |
12 Bolts |
| Weight |
6.5 kg |
| Package Includes |
1x Differential Cover, Bolts, Seals, Installation Guide |
Q1: Which vehicles are compatible with the Dana 30（M186）12 Bolts front differential cover?
A1: This differential cover is compatible with 2018 and newer Jeep Wrangler JL Rubicon (gas engines), 2020 and newer Jeep Wrangler JL Sport/Sport S/Sahara (diesel engines), 2020 and newer Jeep Gladiator JT models, and 2021 and newer Ford Bronco models equipped with Badlands, Wildtrak, 1st Edition, or Sasquatch packages.
Q2: How can I confirm if my vehicle has a Dana 30 （M186） front axle?
A2: Look for the "M186" marking on the front differential housing, typically found on a tag or casting.
Q3: Does installing this differential cover require longer bolts or additional hardware?
A3: Due to the increased thickness of this cover, longer bolts may be required. Ensure the bolt length accommodates the added thickness without compromising fit.
Q4: What are the key benefits of using this front differential cover?
A4: The cover improves structural strength, enhances heat dissipation, and provides additional protection for internal components under high-stress conditions, such as off-roading.
Q5: How does the design accommodate front axle articulation and suspension movement?
A5: The compact, reinforced design ensures compatibility with front axle articulation and steering, maintaining performance even in demanding conditions.
Q6: Does this front differential cover improve oil circulation or cooling?
A6: Yes, the finned design increases heat dissipation, while the added fluid capacity ensures better lubrication and thermal management during extended use.
Q7: What should I pay attention to during installation?
A7: Ensure all contact surfaces are clean, use a high-quality sealant, and tighten bolts gradually to the recommended torque specification to achieve an optimal seal.
PLEASE NOTE!
