Specifications

F-250/F-350/F-450
SD Pickups
24
June 2011
esourcebook.dealerconnection.com
RE&T: 2012 Source Book
F-250/F-350/F-450
Super Duty Pickups
Performance/Handling
2012
Chassis cont’d
Dual Rear Wheels (DRW)
• Either4x2or4x4drivesystem
• Increasereartraction
• Improvetowingstability
• Provideincreasedrearaxleweightratings
Electronic Locking Rear Differential
• AvailableonF-250/F-3504x2and4x4SingleRear
Wheel (SRW) configurations
• Designedtosolidlylocktherearaxlesanddifferential
when the customer wants
• Controlledbyaninstrument-panel-mountedswitch
– Can be turned on and off as needed and engaged
on-the-fly
• Anelectromagneticcoilactivatesamechanicallock
inside the rear differential housing to solidly lock the
rear axle shafts together
• Lockingtheaxleshaftstogetherprovidesmaximum
traction capability on slippery surfaces
• Intendedforoff-roaduseonlyandnotintendedfor
use on dry pavement
Engine Only Traction Control
• StandardonDualRearWheel(DRW)configurations
• Helpsoptimizeavailabletractionorlimitswheelspin
on slippery or loose driving surfaces
• Reducesenginepowerthroughfuelcutofforignition
spark control
• Usesenginetorquetomanagewheelspin,amore
precise method than brake-controlled traction systems
• Computeswheelspinfromthedifferentialand
reduces torque to match the best traction available at
the wheels for that terrain
• Systemmaybedisabledwhenit’snotneeded
Trailer Sway Control
• StandardonallSRWandDRWpickups
• Providesanadditionallayerofconfidenceandcontrol
when towing a trailer
• Seepage42foracompletedescription
ENGINEERING INSIGHT
Dual Rear Wheel Trailer Sway Control
Trailer Sway Control is standard on Pickups (SRW/
DRW). Dual Rear Wheel pickups, while not equipped
with AdvanceTrac, provide Trailer Sway Control
function through a yaw motion sensor incorporated
into the vehicle braking system that allows the
vehicle to monitor for trailer sway and to respond by
applying brake force to either of the front wheels or
reducing engine power to help regain trailer control.