An oval cover with 10 bolt holes and a raised edge on the cover means you probably have an 8 1/4 axle. These units were used until '96 with 27-spline axles. The '97-and-later styles feature a beefier 29-spline style. Axles can be swapped if you have the smaller axles, since the ARB only fits the 29-spline axles. While this rearend isn't equivalent to a Dana 60, it's about as strong as a Ford 8.8 or a Chevy 10-bolt.