Spicer Differential Rebuild Kit P/N:10040478
Dana
Dana/Spicer 10040312 front differential rebuild kit for the 2018-2022 Jeep Wrangler replaces the bearings and seals inside the front axle differential. Each kit holds the combination of parts needed to bring the axle back into shape, and the parts are genuine OE quality, tested and proven.
A whine or howl from the front axle that changes with speed, or lube weeping at a seal, can mean the differential bearings or seals are wearing. Before you replace the bearings and seals, rule out tire noise and leaks from other parts of the axle, since both can look like differential wear. The front axle takes one kit.
This kit fits the 2018-2022 Jeep Wrangler.
Fit and size
Build and materials
Product information is for general reference and may contain errors. See our Disclaimer.
Does the Dana/Spicer 10040312 front differential rebuild kit fit the 2018-2022 Jeep Wrangler?
Yes. Dana/Spicer 10040312 is a front kit for the 2018-2022 Jeep Wrangler and is made for the Dana 30 Front JL axle.
What type of bearings come in the Dana/Spicer 10040312 kit?
Dana/Spicer 10040312 uses tapered roller bearings, supplied with their cups and cones. The kit also has oil seals for the differential.
Is this a front or rear differential rebuild kit?
This kit is for the front axle, made for the Dana 30 Front JL. One kit covers the front axle.
What are the signs of worn front differential bearings?
A whine or howl from the front axle that changes with speed can mean worn bearings, and lube weeping at a seal can mean worn seals. A shop can inspect the differential for you.
Does the Dana/Spicer 10040312 kit include production upgrades?
Yes. Dana/Spicer 10040312 includes the latest Spicer production upgrades, along with the bearings, cups, cones and oil seals.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.