Torque Monster !

I have the Dodge Truck parts book for 73-77 and will check application .

As for the longevity of 408s ... Ots hard to put 40k on RVs. Mine has around 79k original since 78
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Oh I know most sit a lot. But I will be putting some miles on mine. Just one trip planned is to go from Atlanta, GA to various points in Alaska. That will be at least 10,000 miles for just that. When my wife retires in a couple years I plan on being full time Rvers for a year or more. I will also use it for my business when I go out of town handling insurance claims after storms. I am going to guess I hit something close to 40k just the first two or three years.