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2008 F-250/F-350/F-450
Super Duty
®
Pickups
F-250/F-350/F-450 SD PICKUPS
July 2007
F-250/F-350/F-450
SD Pickups
Axles (cont’d)
REAR AXLE SPECIFICATIONS
Model F-250 F-350 SRW
F-350 DRW
Pickup
F-450 DRW
Pickup
Make (Standard and Limited Slip) Visteon Visteon Dana 80 Dana
Max. Rating @ Ground (lbs.) 6200 7280 9000 11,000
Type Full-Floating
Driveline Attachment Circular Flange
Housing — Type Cast Center
— Cover Attachment Bolted
Section
—
Tube Dia. (in.) 3.50 4.00
Synthetic Lubricant Capacity (pt.) 7.0 8.25
Spring Centers (in.) 45.0
Wheel Bearings — Type Tapered Roller
Gears — Type Hypoid
— Material Alloy Steel
Ring Gear — Pitch Dia. (in.) 10.50 11.25
Pinion — Mounting Overhung
Differential — Type
(1)
2-Pinion
Axle Shaft — Spline Minor Dia. (in.) 1.36 1.50
— Spline Major Dia. (in.) 1.50 1.57
— No. of Splines (Hub End) 35 37
(1) 2-pinion with 5.4L (330 CID) SEFI V-8. 3-pinion with 6.8L (415 CID) SEFI V-10 and 6.4L (390.5 CID) V-8 Turbo Diesel engine.
Brakes
HYDRAULIC BRAKE EQUIPMENT SPECIFICATIONS — FRONT/REAR DISC
Type
Super Duty
Series/Model
Axle Usage
(lbs.)
Rotor Dia. (in.)
Brake
Lining
Segment
Area (sq. in.)/
Width (in.)/
Thickness
(in.)
Caliper
Piston
No.Dia.
(in.)
Gross
Lining
Area
Per Axle
(sq. in.)
Total
Swept
Area
Per Axle
(sq. in.)OD ID
Front
Disc
F-250-F-350 4850/6000 13.66 9.06 Outboard 8.73/2.17/0.58 Dual/2.36 34.92 306.4
Inboard 8.73/2.17/0.58
F-450 7000 14.53 9.37 Outboard 13.9/1.81/0.47 Dual/2.36 55.6 337.2
Inboard 13.9/1.81/0.47
Rear
Disc
F-250-F-350 SRW 6200/7280 13.39 9.06 Outboard 9.54/1.92/0.47 Dual/1.89 38.16 272.01
Inboard 9.54/1.92/0.47
F-350 DRW 9000/9750 13.39 9.06 Outboard 9.54/1.92/0.47 Dual/2.13 38.16 272.01
Inboard 9.54/1.92/0.47
F-450 11,000 15.35 10.62 Outboard 13.9/1.81/0.47 Dual/2.36 55.6 361.9
Inboard 13.9/1.81/0.47
BRAKE MASTER CYLINDER SPECIFICATIONS
Type Model/Series Bore Dia. (in.)
Dual System, Dash-Mounted F-250-350 SRW (Gas Engines) 1.3125
F-250-350 SRW (Diesel)/F-350 DRW/F-450 1.5
BRAKES BOOSTER SPECIFICATIONS
Make/Type Super Duty Series/Model
Booster
Type Effective Dia. (in.)
Diaphragm
Type
Dash Mounted F-250-350 SRW (Gas Engines) Vacuum Boost 9.84” Diameter Dual
F-250-350 SRW (Diesel)/F-350 DRW/F-450 Hydro Boost 1.56” Diameter Power Piston
Technical Specifications cont’d
08_F-250F-350 PU.fm Page 70 Wednesday, August 22, 2007 3:28 PM