2007 Peterbilt 357 Mixer, Cummins ISL Engine, Allison Transmission, 20k Front A 2007 Peterbilt 357 Mixer, Cummins ISL Engine, Allison Transmission, 20k Front Axle, 44k Rear Axle, Spring Suspension, 6.17 Ratio, Aluminum Front Wheels, Steel Rear Wheels, 250" Wheelbase, Showing 271,913 miles. MTM 10.5 YD Drum, New Chutes, New Oil/Filters, DOT, Full Detail, Very Clean Unit. For more information, Please Contact Mickey Housby!; Color: White; Ratio: 6.17; Quantity: 1; Engine Model: ISL; Suspension Type: Spring; Transmission Speed: Automatic; Rear Axle Capacity: 44000; Front Axle Capacity: 20000; Wheel Base: 250