Tech Talk: Darian Grubb Sizes Up Substitutes And Texas-Sized Concerns
_Darian Grubb is a Sprint Cup championship crew chief, winning the 2011 title with Tony Stewart. He was starting his second season as the head wrench for Denny Hamlin when Hamlin was injured at California a couple of weeks ago; now, he finds himself calling the shots for multiple drivers filling the seat in his car until they return. With the rules as they are, Grubb’s team will still have a chance to make the Chase if they can stay on top of the car and then win a couple of races with Hamlin in the seat._
_When Frontstretch caught up with Grubb this week, he told us about running Martinsville with Mark Martin and what the FedEx team faces as they head to Texas this week. Grubb covers things from tires to cool temperatures and the difference between having his primary driver in the seat behind him at the track and a sub._