Obviously, there are a lot of questions surrounding steering racks and their durability after last years Bristol night race.
Since last September, both the teams and vendors have gone to work putting these parts and pieces through thousands of hours of testing looking for ways to reduce loads/temperatures as well as ways to improve the lifespan of the assembly.
NASCAR has also increased the bore size from 1.75โ to a optional 2โ. High toe link loads increase the pressure inside the rack which can bypass the pump or blow the seals out of the rack shaft. The volume of the big bore assembly brings down this pressure.