2024 Peterbilt 579 Ultraloft Review

2024 Peterbilt 579 Ultraloft Review. Specs include 18 air slide fifth wheel, 13k front axle, 38k rear axle with 2.79 ratio, peterbilt flex air suspension, air disc brakes all. I got my first look at the new 579—painted with peterbilt’s signature legendary red metal flake, of course—in the parking lot of the company’s denton, texas, manufacturing plant.

A pair of peterbilt 579 ultraloft trucks—one sporting a spacious single bed configuration, the other offering a roomy double bunk setup—flanked the stage. Specs include 18 air slide fifth wheel, 13k front axle, 38k rear axle with 2.79 ratio, peterbilt flex air suspension, air disc brakes all.