Christmas Abbott, a war veteran and CrossFit competitor, will be working with a pit crew in this weekend's NASCAR Daytona 500 race.

Christmas Abbott signed up to be the "first woman" in the pits on Sunday's infamous car race. She will be shadowing Michael Waltrip's racing crew for reference in future NASCAR assignments.

In the pit crew, Abbott is expected to watch as the racing team changes tires, fills the gas tank, and makes adjustments to the racing vehicle.

Last week, the war veteran joined the pit crew of Camping World Truck Series driver Jennifer Jo Cobb, and will gain some experience handling racing tires.

Each tire generally weighs between 55 and 70 pounds, and during each pit stop she is required to bolt two tires in less than 12 seconds.

Abbott weighs approximately 130 pounds and is 5'3'' tall. Each tire weighs about half of what she does.

Currently, Abbott can squat 255 pounds, so she doesn't expect the weight of the tires to be an issue in her pit experience. She's working on increasing that weight.

Christmas Abbott will join Danika Patrick on Sunday's Daytona 500, where Danika is the first woman to earn the pole position (the first position at the start) at the prestigious race.

But the scarcity of women in the male dominated car racing circuit doesn't discourage Abbott at all.

She commented, "NASCAR fans are die-hard and they will call out your BS. I want to go to the highest level."