This kit includes MW Hi-Torque axles, c-clip eliminator kit with 1.625" ball bearings, through hardened 4140 high strength steel spool,  and drive stud kit (drive studs, spacer washers, lug nuts, and jam nuts). This kits fit '65-'71 Chev II, Camaro '67 -'70,  '65-'67 Chevelle. The axles are 29" overall with 4" of spline. These axles fit a 54" to 56" housing.