4130 OEM 4-Link FAB9 rearend housing with spherical-bearing upper arm mounts and late-big-Ford-seal-style housing ends. Direct fit for 64-67 GM A-body. 60" wheel-to-wheel width with 1/4" thick hats; 54-1/2" housing-only width; 1/2" pinion offset; late-big-Ford-seal-style housing ends; spherical-bearing upper-control-arm mounts, 4130 construction, optional back brace; bolts in with stock or aftermarket upper and lower control arms Dimensions for standard width housing: K = 59-1/2, L = 54-1/2, F = 2-1/2, J = 1/4, E = 1/2 Minimum housing width with 1"-wide ends: 49-1/2" SPECIAL ORDER PART NOT RETURNABLE FOR ANY REASON