According to the 1958 owner's manual, the standard factory A/C set-up was front-only. The factory upgrade from this was the dual system, front and rear. Rear-only systems were also available - most likely the standard A/C retrofit at the dealer level. The operation of the rear-only system is also indicated in the owner's manual. Chris H. 60 NY T&C 66 LeBaron --- Ernie Stepney <estepney@xxxxxxxxx> wrote: > Seems like we have misunderstood the hierarchy of > A/C installations on > these cars. Both of my acquisitions have front A/C > only, leading me to > believe that the rear A/C was the add on for the > dual system. > > Ernie > 58 Crown > 58 LeBaron Southampton > > > >