Aussie Locker XD-14450 — Dana 44A Aluminum Rear Differential | 1993–2004 Jeep ZJ & WJ Grand Cherokee

The Aussie Locker XD-14450 is an automatic precision locking differential designed for the Dana 44A aluminum open rear differential found in the 1993–1998 Jeep ZJ Grand Cherokee and 1999–2004 Jeep WJ Grand Cherokee.

Fitment:

• 1993–1998 Jeep Grand Cherokee ZJ — rear, open Dana 44A differential, with a transfer case that has 2WD as an option
• 1999–2004 Jeep Grand Cherokee WJ — rear, open Dana 44A differential, with a transfer case that has 2WD as an option

Important Compatibility Notes:

• Not compatible with AWD-only transfer cases
• Will not work in posi or limited slip carriers, including the optional ZJ TrackLok or optional WJ VariLok rear differentials
• WJ VariLok axle shafts are not directly compatible and would require major modification

How It Works: The Aussie Locker is a fully mechanical automatic locker — no air lines, no compressors, no cables, no electric wires. It installs directly into an open differential carrier and delivers 100% traction performance, compared to 40–60% with a posi or LSD. It requires no special tools and can be installed by anyone able to perform a brake job.

Construction: Special steel alloys, proprietary manufacturing processes, unique heat treatment procedures, and 100% quality audits with electronic microscopes are used in production. Performance does not degrade over time.

Specs:

• Weight: 5 lb
• Dimensions: 9 × 6 × 3 in
• Vehicle Type: 4×4
• Made in USA

Warranty: Aussie Locker No-Nonsense Two Year Limited Warranty — no restrictions on tire size or horsepower.

Part Number: XD-14450