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D4D questions

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2 years 7 months ago #237237 by Mschwartz
D4D questions was created by Mschwartz
Purchased D4d, it is a 20j model. Turbo, direct drive SA cat. Looking at my books I see that the 20J books are just additional info to the 78A books.  Was the 20 J the special application version of the 78A?  Or was it produced after the 78a run was over? I thought the 20j was replaced by the 84J series. Does any one know how many 20J tractors were built?  Thanks, Mike 
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