Sad day for the 39 rear end. It is well worn on the saddles. Too much play without spending who knows the amount of time building them up. I spent half a day getting the saddles off the 40 rear end before the problems with it started piling on. The tubes were worn completely through on that one and the propeller shaft had worn through the bronze bushing at the trans output. Thus the new rear end coming from Dutchman Axles.