I have two narrowed 31 spline Ford 8.8 rear ends available. One is a 3.73 limited slip and the other is a 4.10 limited slip differential. They are narrowed to 56 1/2” mounting surface to mounting surface. Have been gone through with new e brakes, rotors, calipers, brake lines, rear cover, bearings, seals and shock perches. Perches are 43” center to center, correct for an A body Mopar. Inside rear end has been completely flushed out and degreased after being narrowed. Outside has been cleaned and painted with POR15 satin black paint. Comes with u bolts, will need shock plates for your application. Price is $1000 each. Located in San Jose, CA.