Hi DoubleChevron,
I had exactly the same issue a year or so back. The new bushes in the Panhard rod had chewed out after bugger all use. I gave up and purchased a genuine new Panhard rod from ULR as I couldn't determine that aftermarket bushes would be OK (I forget the cost but must have been about $280 or so). I also replaced all the tie-rod ends (genuine) and fitted a new damper (aftermarket) and went to great trouble to make sure everything was set up correctly. At the same time I overhauled the swivel pin housings and reset the pre-load. 
I suppose if you take the time, trouble and money to set it all up correctly again, it will last another twenty years.
				
			 
			
		 
			
				
			
			
				2013 D4 expedition equipped
1966 Army workshop trailer
(previously SII 2.25 swb, SIII 2.25 swb & lwb, P38 Vogue, 1993 LSE 3.9V8 then HS2.8)
			
			
		 
	
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