Re: air cond on 83 LTD
In most cases all you will have to change will be the hoses & tx valve.
The compressor normally* just gets emptied & refilled with the appropriate comp oil.
Once this is done its blown out with nitrogen, vac'ed & recharged.
The newer pumps should fit mate afterall the body dimensions are close to the same, if anything a modified bracket could be source for next to bugger all.. As per pump prices look at a wreckers mate they tend to be expensive
FORD.... "POWER TO THE PEOPLE"...
Member of the "TKTDSGM " Group..