The Peterbilt Model 567 Set-Forward Front Axle configuration is ideal for mixer and other weight-conscious applications, according to the company. The Model 567 SFFA is available in both 115" and 121" BBC lengths. The 115" BBC has a bumper to front axle distance of 29", and the 121" BBC has a bumper to front axle distance of 31". Both the set-forward and set-back front axle configurations of the Model 567 are standard with the PACCAR MX-13 Engine, and both are available as a day cab or with Peterbilt’s lineup of detachable sleepers.