Con rod ID

It looks like `74 rods according to the casting #. The first two digits of most Mopar castings will give you the first casting date. If the first digit is 1 then that`s the 50`s decade, if it`s 2 that`s the 60`s, 3 the 70`s and so on. The second digit is the year. So in your case a 34 would be `74. The last digit will often designate the side of the car it goes on, even is right and odd is left.This works for most Mopar castings but not all, so just use it as a guideline.