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Old 05-03-2017, 10:08 AM   #3
100IH
Senior Member
 
Join Date: Dec 2011
Location: SW Idaho
Posts: 970
Default Re: Model A & AA radiator shell the same?

Plus deeper from front to rear. AA has a thicker core because of more rows of tubes. Also 30 &31 shells are not stainless except for the uncommon deluxe models
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