The National Stock Car Racing panel unanimously upheld fines, point penalties and suspensions issued for unapproved rear housing parts discovered during inspection of both cars prior to the April 13 Texas race.
Team owner Roger Penske will utilize the final step in the appeal process, in which NASCAR chief appellate officer John Middlebrook will hear from both sides.
The hearing will take place next Tuesday at 10 a.m. ET, meaning all of the suspended crew members will be at Talladega this weekend.
"Obviously, we're disappointed with the outcome,'' Penske said. "We met with the panel for over four or five hours. It was a good process. I feel we have a good case, and as we are allowed to under the NASCAR rules we will appeal to the next level.
"I can't make any [further] comment. It's clear we have a process. That's why I'm better off to wait and see that conclude, and at that point I can make any other personal comments.'' (ESPN.com)