General Motors has met with teams in NASCAR's top-tier Sprint Cup series about its plans to cut back financial support.
Teams in the lower-tier Nationwide and Camping World Truck series already had been notified of cuts. GM is reorganizing through Chapter 11 bankruptcy and had said last week it planned to make cuts across all of NASCAR's series.
Stewart-Haas Racing and Hendrick Motorsports confirmed their discussions with GM on Wednesday.
Chevrolet spokesman Terry Rhadigan declined to provide details of the cuts.
Driver and Stewart-Haas Racing co-owner Tony Stewart says his team will remain "strong supporters of GM and its Chevrolet brand."
Hendrick Motorsports owner Rick Hendrick says "we're proud to be a Chevy team."