Martin Truex led both Saturday practice sessions, but it wasn't all smooth sailing for the No. 78. imbalance
Martin Truex Jr. was once again the fastest man at Chicagoland in Happy Hour, putting the No. 78 at the top of the charts for both practice sessions on Saturday.
He went 184.849mph, which was over two tenths quicker than the fast lap he set in the earlier session. After Practice 2 however, the team was forced to change the oil cooler. While working on the car with a sawzall, the battery of the tool punctured it. The setback obviously didn't hinder their progress, if Happy Hour is any indication.
Brad Keselowski, Matt Kenseth, Carl Edwards, and Kyle Larson rounded out the top five. Jimmie Johnson in sixth was once again put down the best ten consecutive lap average. He complained of an imbalance throughout practice that made the No. 48 too loose. Multiple adjustments were made, including a right rear spring change towards the end of the session.
The remainder of the top ten was filled by Denny Hamlin, Paul Menard, Austin Dillon, and Ryan Newman.
The Chase contenders from Stewart-Haas Racing were a bit further down the speed charts than one would expect with Kevin Harvick 14th and Kurt Busch 17th.
Final practice went on without any incidents and no red flags. The only notable contact of any kind involved Aric Almirola, who brushed the wall with the right rear.
CLICK HERE for complete practice results