I got the Currie steering delivered from @sjalkian. This thing is beefy. TR end is bad on one end. The other boots look like they’re on their last leg. Is it common for the boots to split early? What’s the scoop on the steel vs aluminum TR?
Are you asking what is the reasons for running an aluminum tie rod over a steel tie rod?
My understanding is that the aluminum TR is suppose to be able to bend and then return to it's original shape where a steel TR is just going to bend. That is what I remember from when the idea of using aluminum for TR first came out.
But I'm sure my ignored person could shed more information on the subject.