Sirius Satellite Radio Super Duty F-450 - Manual (Page 22)

Suspensions
F-250/F-350 Front Suspensions
• Proven Twin I-Beam with coil springs front suspension
design is used on all F-250/F-350 4x2 Super Duty ® pickups
– Twin I-Beam design combines the strength of a solid
I-Beam suspension with the flexibility and comfort of
a fully independent suspension
– Coil springs provide a smoother ride than leaf springs
without sacrificing load-carrying capacity
– Front bushings stiffer than previously
– Front stabilizer bars redesigned with new links for improved
ride and handling
– Front Gross Axle Weight Rating (GAWR) increased to
5250 lbs.
• Robust twin-coil monobeam front axle/suspension design is
used on all F-250/F-350 4x4 pickup models
– Twin-coil monobeam front suspension combined with the
steering system design provides tight turning diameters and
reduced parking effort. Loaded or unloaded cornering and
maneuverability are more precise
– Gives a smoother ride than a leaf-spring design
• 6000-lb. maximum front GAWR (F-250/F-350)
F-450 Front Suspension
• Wide-frame twin-coil monobeam front suspension from
F-450 Chassis Cab is standard on all F-450 Pickups and
available on F-350 DRW Crew Cab with 8.0-foot box (67W)
– Twin-coil monobeam front suspension combined with the
steering system design provides tight turning diameters and
reduced parking effort. Loaded or unloaded cornering and
maneuverability are more precise
– Gives a smoother ride than a leaf-spring design
• Large 35mm front stabilizer bar
• Large, square axle tubes are designed to deliver improved
towing performance and capability
• 7000-lb. maximum front GAWR
Leaf-spring Rear Suspension
• Provides the same high levels of capability with
increased refinement
• Leaf springs are 8 inches longer than previously and attach
farther forward on the frame
• Stiffer bushings and redesigned rear linkage
• Staggered rear shock absorbers help contribute to better
ride and confident handling, loaded or unloaded
• Contributes to confident feel of the vehicle
• Reduces power hop and brake hop
• Keeps the rear end lower to accommodate towing taller
gooseneck and fifth-wheel trailers
• Helps reduce front and rear body lean when cornering
Leaf-spring Rear Suspension
Stabilizer
bar
Longer leaf springs
Staggered shocks
Twin-coil Monobeam Front Suspension
Radius arms Coil springs
Monobeam axle
Suspensions
PERFORMANCE/HANDLING
This page is about:
2008 F-250/F-350/F-450
Super Duty ® Pickups
Performance/Handling
July 2007
F-250/F-350/F-450
SD Pickups
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