Speedometer "setting" for 14" tires

Actually, the only adjustment you can make is replacing the speedometer gear in the transmission. You'll need to know how many teeth the original one has, measure the outside diameter of your new tires, and we can run the numbers in the MOPAR book to tell you which tooth size is correct for your combination. Or, if you know the ring gear size and tire outside diameter, we can give you the number now just by looking in the book. If I remember correctly, it's the Chassis book.

Brad