my 1998 xj has the axle under the leaf springs as it should but there is a set of leaf spring perches on the bottom of the axle that have been cut off as if it were mounted on top the the springs of some vehicle ?!?!?! :dunno: and one shock mount is home made, im wondering if the the old 27 spline or the newer 29 spline ? :dunno: is there any visual way to identify which one it is with out pulling the cover and counting spline teeth ? :dunno: also it is a limited slip if that makes any difference ? thanks