MDM gave you information for your ZJ. If you have the
93-98 V8 (5.2L or 5.9L) Grand Cherokee's
D44a "aluminum center section" rear axle •Differential Location: Centered
•Stock axle splines: 30 spline shafts, no upgrades to spline count available
•Lug Pattern: 5 on 4.5"
•Width: 60.5" from wheel mounting surface to wheel mounting surface
•Notes for D44a: Not a bad axle with 33-35" tires, some care needed for the larger end, has been known to handle 37's with care. The aftermarket support is very limited for this axle due to the aluminum center section. The center section is very similar to the unit in the corvette. Many people replace the axle due to the limited gear ratio's available and the extremely limited availability of any traction device such as a locker.
What are the 3 rear ends the auto parts store states you have? You have a V8 engine and it's a 1998 correct? It should be a D44.
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