Bigger tie-rods for my 66 Dart

I have my front suspension apart for rebuild on my 65 valiant. Never gave much thought to the strength of the parts. I have never broken any parts in the past on lots of 40+ year old a bodies. In fact it's my understanding that the Hemi superstock cars have to use the small upper ball joint to be class legal.

Is there really a need to upgrade the size of the factory parts?