126th top ten in the Nationwide Series. For the Coke Zero 400, Nemechek entered with the No. 29 RAB Racing Toyota with sponsorship from ToyotaCare, but failed to qualify. Nemechek joined Randy Humphrey Racing for the Oral-B USA 500, qualifying 34th and finishing 37th. He returned to RAB Racing's No. 29 at the 2014 GEICO 500, and initially qualified 24th, putting him in the field for the race. However, his car failed post-race inspection for an improperly sealed oil tank encasement, and he failed to qualify. This became the first season in Nemechek's Cup Series career where he did not race in any of the superspeedway races. 2015–2018 Nemechek's team announced that for the 2015 NASCAR Camping World Truck Series season that his team would be returning to Chevrolet after a three-year tenure with Toyota. Nemechek returned to his own team in the Xfinity and Cup series, running a limited schedule with Chevrolets. Nemechek began the season by failing to qualify for the Xfinity race at Daytona, and withdrawing from the Daytona 500. The following week at Atlanta, he was announced as the substitute for David Ragan in the No. 34 CSX Ford for Front Row Motorsports. At the time, Ragan was driving for Joe Gibbs Racing in place of the injured Kyle Busch. Nemechek drove the No. 34 car to a 33rd-place finish in what would be his only Cup Series start of the season. Nemechek made two appearances in 2016, driving his own No. 87 in both Xfinity races at Daytona. Nemechek finished 18th in February and 36th in July after being caught in an early crash while he was running in the top 10. On January 20, 2017, it was announced that Nemechek would drive the No. 87 truck in the first three races of the season. Nemechek would finish 5th in the season opening race. The next week he would finish 24th at Atlanta. Beginning at Gateway after a 4 race break, Nemechek start and parked the No. 87 until the end of the season, skipping only Eldora and Martinsville where he gave up the ride for Ty Dillon, who brought sponsorship to run the full race. Nemechek's son, John Hunter, would win two consecutive Truck Series races at Gateway and Iowa. Nemechek returned to Xfinity Series and drove the final two races of the season for JD Motorsports, beginning with a start and park at