Spicer Differential Rebuild Kit P/N:10040478

Rebuild your Jeep's rear differential with confidence using the Spicer Differential Rebuild Kit 10040478, a genuine Spicer Master Overhaul Kit for the Dana 44 AdvanTEK rear axle. It's a direct-fit rebuild package for the listed applications: the 2018-2022 Jeep Wrangler and 2020-2022 Jeep Gladiator — see the Buyer's Guide tab for the full engine-level fitment.

• Master overhaul package: Spicer's most comprehensive rear-differential kit, bringing together the parts needed for a thorough, lasting rebuild.
• Bearings, cups and cones: a high-quality mix of bearings, cups and cones for dependable performance.
• Premium oil seals: designed to keep lube in and dust and grime out.
• Genuine OE quality: tested and proven, with the latest production upgrades built in.

As a genuine Spicer kit, it carries the newest production upgrades so the components you install are as good as — or better than — the OE parts they replace. Use it when servicing a worn Dana 44 AdvanTEK rear differential; signs a rebuild may be due include gear whine, bearing growl, backlash-related clunk, or lube seepage past the seals. Because a differential rebuild involves setting bearing preload and gear backlash, installation is best handled by a qualified technician.