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					Originally Posted by  jack neville
					 
				 
				Wheels And Tracks #5 mentions the trucks as being fitted with Canadian produced GS bodywork.  “Two types of body were made for the HAR 01 chassis; they carried Codes 4R1 and 4R2 and were made by Brentford Coach and Body Ltd.” 
			
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 Jack,
Body 4R1 info from Clive Law’s Drive to Victory: