The 8.8-Inch axle used in the Explorer is highly desirable because it came with 31-spline axles over the typical 28-spline found in the Ranger version. There’s a 20-25 percent difference in strength between this Explorer 8.8 and the Ranger 8.8. The bigger 31-spline axle accounts for most of that, but the 3.25-inch tubes also help. The 1991-1994 versions had 10-Inch drum brakes and the 1995 and newer models come with disc brakes.
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