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?
My 66 Dart has come along way from being stock with 6 cyl. 13 inch tires on a 7 1/4 rearend.It now has a 410/904 built for racing,also a shortened 8 3/4 with spool and Strange axels.Zandful,have you looked at your 40yr old LCA bushings lately?I bet they,re mush and hanging out.When I got my 66 Dart,it still had all the factory frontend parts,brake lines and such.LOL.I,m upgrading to handle the added weight,torque and HP that is being thrown at the whole car in a split second.I,d hate to launch(wheels up)and come down to a broken part.I,d surely wreck the car and maybe even get hurt.This is why I,m doing upgrades to my RACE car.:-D