I need to lengthen my pup tongue by 2'. It seems the easiest way to do it would be to use a 2" diameter piece of rod then weld/bolt the rod to a new pintle eye. My question is what type of steel does the rod need to be? I don't want it to bend easily, but snapping would also be bad. I can go with a thicker rod, but the end will have to be turned down to 2" OD to fit into the existing trailer tongue. The pup will never exceed 36K pounds, I have no way of measuring the down force on the tongue.