Building another 440 Bluesmobile K cop car. Has a 3:23 one wheel peel. Who makes the best US made 31 spline 9.25 posi unit? Axle and front differential seals? Crush bearing etc. Total rebuild. Tired of the low quality stuff. Thanks

Also have a complete running 318 eddy intake and carb, 727, driveshaft, rearend springs etc etc. Was running fine until removed yesterday. 70669 2 cases Coors Light