Chevrolet’s racing division completed its investigation into the issue that caused the propeller shaft on Tyler Reddick’s No. 8 Camaro to fail at the Clash at the Coliseum. Its findings prompted Nascar to release a solution that will hopefully prevent a similar malfunction from happening in future races.
According to Bob Pockrass, Nascar reporter at Fox Sports, the sanctioning body changed the transaxle mount from 1/4-inch thick to 3/8-inch thick. In theory, this should lessen excessive vibration, and therefore prevent the prop shaft from breaking, Pockrass stated in a Twitter post.
In response to what happened with the Reddick and Briscoe cars at the Clash, the transaxle mount has changed from 1/4-inch thick to 3/8-inch thick. Theoretically would lessen any potential vibration and failure.
— Bob Pockrass (@bobpockrass) February 15, 2022
The failure occurred while the race was under caution. Reddick was leading when the yellow flag flew, and while the field was slowed, he wove his No. 8 Next Gen Camaro back and forth to build heat in his tires to prepare for the race restart. However, it became evident that the No. 8 had suffered a mechanical issue as it suddenly fell off the pace and slowed on the quarter-mile temporary track before the green flag waved. Reddick’s Camaro had to be pushed to the infield due to the sudden loss of drive power.
In the same caution period, the No. 14 Ford Mustang of Chase Briscoe experienced a driveline failure that appeared strikingly similar to Reddick’s issue. It was later confirmed that the No. 14 had also suffered a broken propeller shaft resulting from unprecedented stress on the race car’s transaxle under race conditions.
Nascar has made the updated transaxle assembly available to teams for use in the upcoming Daytona 500, which will take place on February 20th.