Ross Chastain has had a roller coaster type of offseason. First, he signed with Chip Ganassi Racing to drive the No. 42 Chevrolet on a full time basis in the NASCAR XFINITY Series. It was the break that Chastain bet on himself for. After doing enough with JD Motorsports last year to make the playoffs, he propelled himself even further in three opportunities with CGR too.

Chastain, won the pole and led the most laps at Darlington, won at Las Vegas and finished runner-up in Richmond. Unfortunately, his big break only lasted a few months. His sponsor, DC Solar, had legal problems and are under a federal investigation. That led to his new ride at Ganassi shuttering.

In this whole process, JDM worked out a deal with Blake Koch to drive their No. 4 Chevrolet for 2019 with Koch bringing funding from his business, Filter Time.

On Thursday though, JDM announced that Chastain will return to his old ride after all for 30 of the 33 races in 2019 with Koch actually stepping away to let him race.

“We here at JD Motorsports are looking forward to having Ross back in the No. 4 in 2019,” team owner Johnny Davis said. “He has shown his ability to wheel a racecar time and time again while competing against some of the top teams in the sport. I am excited to see how far the improvements made in the off season will take the No. 4 car this year.”

Koch, who was originally slated to drive the No. 4, decided earlier this year to focus primarily on overseeing the success of his growing company, Filter Time. Blake’s decision ultimately leads to him stepping away from the series.

RM Parks, Inc, EZ Angus Ranch and Mc Divitt Sign Company will jump on board as official sponsors of the No. 4 for all five of the West Coast races within the season. According to RM Parks, Inc. president and CEO, Tim Callison, “We are excited to be part of Ross Chastain’s winning team and are looking forward to another amazing season with JD Motorsports!”

The three races that Chastain won’t be driving for JDM he will drive for Kaulig Racing including the season opening race at Daytona in the No. 10 Chevrolet. The other two races are Chicagoland and the fall Texas race.