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JL Front Diff Skid (FDS)


The JL Front Diff Skid (FDS) is designed to provide protection for the vulnerable ribs on JL Front Diff, and provides a smooth surface to slide over obstacles.



JL Front Diff Skid (FDS) for M210 *Pre-Order*

The JL Front Diff Skid (FDS) is a heavy duty skid designed to protect the JL front differential’s drain plug and provides a smooth surface for you to slide over obstacles. All components are CNC laser cut and formed by a CNC press brake for a precise fit. We proudly fabricate and hand-weld this product in the USA.

The new JL Wrangler axles are a fantastic upgrade over the previous models. However, their shape, and bottom mounted drain plug is not ideal for rock crawling.

As any rock crawling enthusiast will tell you, every inch of ground clearance matters. Anything on your Jeep’s underside that can be smooth should be, or it’s likely to catch on an obstacle. Our JL Front Diff Skid (FDS) is CAD designed with 3D modeling to retain every bit of possible ground clearance for critical protection you need on the trail.

Product Details

We build the JL Front Diff Skid (FDS) from a combination of 1/4″ and 3/8″ thick steel. This diff skid ties into multiple locations on the differential flange, as well as clamping tight to the snout of the differential. As a result, you will distribute any force — such as the weight of the vehicle on a rock — over a much larger area. This skid also extends your coverage to the pinion seal and yoke/flange where the front driveshaft attaches.

*This skid is designed and recommended for use with our HD JL Front Diff Cover * It should fit with TMR and Motobilt Diff Covers. It will *not* work with the Spicer aftermarket covers due to the shape/fin features.

Installation with a factory cover is possible but requires a shim/spacer to account for the factory cover’s thinner material. For ultimate strength and protection, we recommend using this product in conjunction with our HD JL Front Diff Cover.

Included with purchase:

(1) Front Differential Skid Plate with Top Clamp
(2) Hardware Sticks with hardware/bolts
(6) Class 10.9 12 Point Flange Bolts

  • Do I need to empty my differential fluid before installation?
    In our experience, no. The factory gasket in addition to the very thick/ rigid flange on our HD Diff Covers has not leaked any fluid when removing the lower 6 bolts on the cover, as long as the upper 6 bolts are left in place during installation.


  • This ties into the diff cover; will it cause the gasket to begin leaking fluid if hit hard enough?
    In our experience, that would be unusual. When properly torqued with a good gasket, the clamping force of the differential cover bolts along with a very thick/ rigid flange. This prevents most impacts from compromising the integrity of a good gasket/ seal between the cover and differential. Our diff skid extends so far forward, it arguably offers more leverage than the diff cover itself. This is why the pinion/ snout clamp components and hardware are so substantial.

Our Standard Semi-Gloss Black Wrinkle Powder coat option adds 2-3 days to lead time prior to shipping. Other colors may add a lead time of 5-10+ days. Please call for a more accurate lead time.

This listing is currently a pre-order with an estimated Ship Date of June 1st. Please call or email us for an updated timeline if you would.

Additional information

Weight22 lbs
Dimensions19 × 14 × 6 in
Powder Coating



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