2008 Ford F-Series Super Duty Specifications
F250/350/450 Powertrain/Chassis
POWERTRAI N
5.4L 3V Triton V-8
6.8L Triton 3V V-10
6.4L Power Stroke Diesel V-8
Engine Type
V-8, iron block, aluminum heads
V-10, iron block, aluminum heads
V-8, iron block and heads
Bore/Stroke
3.55 x 4.16 in
3.55 x 4.16 in
3.86 x 4.13 in
Displacement
330 cu in, 5400 cc
415 cu in, 6802 cc
390.5 cu in, 6400 c c
Compression Ratio
9.8:1
9.2:1
17.2:1
Fuel Injection
Sequential multi-port electronic
Sequential multi-port electronic
High-pressure common rail
Valvetrain
SOHC, 3 valves per cylinder, variable cam timing
SOHC, 3 valves per cylinder
SOHC, 4 valves per cylinder
Power
300 hp @ 5,000 rpm
362 hp @ 4,750 rpm
350 hp @ 3,000 rpm
Torque
365 lb-ft @ 3,750 rpm
457 lb-ft @ 3,250 rpm
650 lb-ft @ 2,000 rpm
Oil Capacity
7 qt
7 qt
15 qt
Coolant Capacity
26.4 qt
27.5 qt
17.9 qt (engine only)
Transmission Type
6-speed manual overdrive (all)
5-speed TorqShift automatic overdrive (all)
Gear Ratios
I
5.79:1
3.11:1
II
3.30:1
2.22:1
III
2.10:1
1.55:1
IV
1.30:1
1.00:1
V
1.00:1
0.71:1
VI
0.72:1
-
-
Available axle ratios
3.73:1, 4.10:1, 4.30:1 (F-250/350)
4.30:1, 4.88:1 (F-450)
SUSPENSION
Front
4x2
Independent twin I-beam (Narrow Front Track) with coil springs, shock absorbers, stabilizer bar (F-250/350)
Mono Beam (Wide Front Track) with coil springs, shock absorbers, stabilizer bar (F-450)
4x4
Twin coil mono beam (Narrow Front Track), shock absorbers, stabilizer bar (F-250/350)
Mono Beam (Wide Front Track) with coil springs, shock absorbers, stabilizer bar (F-450)
Rear
4x2
Stabilizer bar with non independent live axle with leaf springs, staggered shock absorbers; stabilizer bar on DRW models, camper package and stabilizer bar package on SRW
4x4
Stabilizer bar with non independent live axle with leaf springs, staggered shock absorbers; stabilizer bar on DRW models, camper package and stabilizer bar package on SR
BRAKES
Front
13.66-inch disc
Rear
13.39-inch disc
Assist type
Vacuum (F-250/F-350 single-rear-wheel gas engines) / hydro-boost (F-250/F-350 single-rear-wheel diesel engine, F-350 dual-rear-wheel), ABS
WHEELS AND TIRES
Base wheel and tire
17-inch steel on F-350 dual-rear-wheel; 17 & 18-inch steel on F-250/350 single-rear-wheel, 19.5-inch. on F-450
Largest tires available
20-inch aluminum wheel, LT275/65R20E
F250/350/450 Dimensions and Capacities
Regular Cab
SuperCab
Crew Cab
8-ft
6.75-ft
8-ft
6.75-ft
8-ft
4x2
4x4
4x2
4x4
4x2
4x4
4x2
4x4
4x2
4x4
EXTERIOR
Wheelbase
137.0
137.0
141.8
141.8
158.0
158.0
156.2
156.2
172.4
172.4
Overall length
227.0
227.0
231.8
231.8
248.0
248.0
246.2
246.2
262.4
262.4
Overall width
79.9
(95.5 for DRW)
79.9
(95.5 for DRW)
79.9
79.9
79.9
(95.5 for DRW)
79.9
(95.5 for DRW)
79.9
(95.5 for DRW)
79.9
(95.5 for DRW)
79.9
(95.5 for DRW)
79.9
(95.5 for DRW)
Cargo box length @ Floor
98.0
98.0
81.8
81.8
98.0
98.0
81.8
81.8
98.0
98.0
Cargo Width between wheelhouse
50.9
50.9
50.9
50.9
50.9
50.9
50.9
50.9
50.9
50.9
Inside Box Height
20.1
20.1
20.1
20.1
20.1
20.1
20.1
20.1
20.1
20.1
INTERIOR
Seating capacity
2/3
2/3
5/6
5/6
5/6
5/6
5/6
5/6
5/6
5/6
Headroom
Front
41.4
41.4
41.4
41.4
41.4
41.4
41.4
41.4
41.4
41.4
Rear
-
-
38.4
38.4
38.4
38.4
41.4
41.4
41.4
41.4
Legroom
Front
41
41
41
41
41
41
41
41
41
41
Rear
-
-
31.8
31.8
31.8
31.8
41.8
41.8
41.8
41.8
Hiproom
Front
67.6
67.6
67.6
67.6
67.6
67.6
67.6
67.6
67.6
67.6
Rear
-
-
67.3
67.3
67.3
67.3
67.3
67.3
67.3
67.3
Shoulder room
Front
68
68
68
68
68
68
68
68
68
68
Rear
-
-
68.1
68.1
68.1
68.1
68
68
68
68
Fuel capacity (gal)
30.5 gallons with 141.8, 156.2 wheelbase, 38.0 gallons with 137, 158 and 172.4 wheelbase
Turning diameter, curb-to-curb (ft)
47.7
46.1
49.1
47.5
54.1
52.36
53.5
51.8
58.5
56.5
All Dimensions are in inches unless otherwise noted.
F250/350/450 Weight and Towing
Cab
Regular Cab
SuperCab
Crew Cab
Cargo Box
8ft
6.75ft
8ft
6.75ft
8ft
Drive
4x2
4x4
4x2
4x4
4x2
4x4
4x2
4x4
4x2
4x4
Base curb weight
F250 SRW
5633
6092
5887
6346
5991
6458
6051
6523
6152
6618
F350 SRW
5735
6194
5989
6448
6093
6560
6153
6625
6254
6720
F350 DRW
6083
6542
-
-
6441
6908
6625
7128
6742
7227
F450 DRW
-
-
-
-
-
-
-
-
8290
8687
Max payload capacity 1
F250 SRW
3150
2890
3110
2840
3210
2910
3160
2850
3240
2950
F350 SRW
4350
4280
4210
4130
4310
4200
4260
4150
4340
4250
F350 DRW
5700
5430
-
-
5760
5450
5700
5400
5790
5300
F450 DRW
-
-
-
-
-
-
-
-
6120
5720
Max GVWR
F250 SRW
9400
9600
9600
9800
9800
10,000
9800
10,000
10,000
10,000
F350 SRW
10,700
11,100
10,800
11,200
11,000
11,400
11,000
11,400
11,200
11,500
F350 DRW
12,400
12,600
-
-
12,800
13000
12,800
13,000
13,000
13,000
F450 DRW
-
-
-
-
-
-
-
-
14500
14500
Maximum
GCWR
5.4L, 3.73:1 axle
16,000
5.4L, 4.10:1 axle
18,500
6.8L, 4.10:1 axle
21,500
6.8L, 4.30:1 axle
23,000
6.4L diesel, 3.73:1 axle
23,500
6.4L diesel, 4.10:1 axle
23,500
6.4L diesel, 4.30:1 axle
26,000
6.4L diesel, 4.88:1 axle
33000
Max. Towing 1
F-250/F-350 SRW
F-350 DRW
F-450 DRW
Conventional-Weight carrying
5000(2268)
6000(2722)
6000
Conventional-Weight distributing
12,500(5670)
15,000(6804)
16000
5th Wheel/Goose Neck
16900*
18800
24500
*F-350 SRW only
1Propperly Equipped
F-350-450-550 Powertrain/Chassis
POWERTRAIN
5.4L 3V Triton V-8
6.8L 3V Triton V-10
6.4L Power Stroke Diesel V-8
Engine Type
V-8, iron block, aluminum heads
V-10, iron block, aluminum heads
V-8, iron block and heads
Bore/Stroke
3.55 x 4.16 in
3.55 x 4.16 in
3.86 x 4.13 in
Displacement
330 cu in, 5400 cc
415 cu in, 6802 cc
390.5 cu in, 6400 cc
Compression Ratio
9.8:1
9.2:1
17.2:1
Fuel Injection
Sequential multi-port electronic
Sequential multi-port electronic
High-pressure common rail
Valvetrain
SOHC, 3 valves per cylinder, variable cam timing
SOHC, 3 valves per cylinder
SOHC, 4 valves per cylinder
Power
300 hp @ 5,000 rpm
362 hp @ 4,750 rpm
350 hp @ 3,000 rpm
Torque
365 lb-ft @ 3,750 rpm
457 lb-ft @ 3,250 rpm
650 lb-ft @ 2,000 rpm
Oil Capacity
7 qt
7 qt
15 qt
Coolant Capacity
26.4 qt
27.5 qt
17.9 qt (engine only)
Transmission Type
6-speed manual overdrive (all)
5-speed TorqShift automatic overdrive (all)
Gear Ratios
I
5.79:1
3.11:1
II
3.30:1
2.22:1
III
2.10:1
1.55:1
IV
1.30:1
1.00:1
V
1.00:1
0.71:1
VI
0.72:1
-
-
Available axle ratios
3.73:1, 4.10:1, 4.30:1 (F-350); 4.30:1, 4.88:1, 5.38:1 (F-450/F-550)
SUSPENSION
Front
4x2
Independent twin I-beam (Narrow Front Track) with coil springs (F-350)
or Twin-coil mono beam (Wide Front Track) (F-450/F-550), both with shock absorbers and stabilizer bar
4x4
Twin-coil mono beam (Narrow Front Track), or Twin-coil mono beam (Wide Front Track) (F-450/F-550), both with shock absorbers, stabilizer bar
Rear
4x2
Non independent live axle with leaf springs, staggered shock absorbers; stabilizer bar
4x4
Non independent live axle with leaf springs, staggered shock absorbers; stabilizer bar
BRAKES
Front
13.66-inch disc (F-350), 14.53-inch disc (F-450/F-550)
Rear
13.39-inch disc (F-350), 15.35-inch disc (F-450/F-550)
Assist type
Vacuum (F-350 single-rear-wheel gas engines) / hydro-boost (F-350 single-rear-wheel diesel engine,
F-350 dual-rear-wheel, F-450/F-550), ABS
WHEELS AND TIRES
Base wheel and tire
17-inch steel on F-350 dual-rear-wheel; 18-inch steel on F-350 single-rear-wheel, 19.5 steel (F-450/550)
Largest tires available
LT245/75RE (F-350 DRW), LT275/70R18E (F-350 SRW), LT225/70R19.5F (F-450/550)
F350/F450/F550 Dimensions and Capacities
Regular Cab
SuperCab
Crew Cab
EXTERIOR
Wheelbase /
Back-of-cab-to-axle
140.8/60
164.8/84
188.8/108
200.8/120
161.8/60
176.2/60
200.2/84
Overall length
226.0
250.0
274.0
286.0
247.0
261.4
285.4
INTERIOR
Seating capacity
2/3
2/3
2/3
2/3
5/6
5/6
5/6
Headroom
Front
41.4
41.4
41.4
41.4
41.4
41.4
41.4
Rear
-
-
-
-
38.4
41.4
41.4
Legroom
Front
41.0
41.0
41.0
41.0
41.0
41.0
41.0
Rear
-
-
-
-
31.8
41.8
41.8
Hip room
Front
67.6
67.6
67.6
67.6
67.6
67.6
67.6
Rear
-
-
-
-
67.3
67.3
67.3
Shoulder room
Front
68.0
68.0
68.0
68.0
68.0
68.0
68.0
Rear
-
-
-
-
68.1
68.0
68.0
Fuel capacity
40-gal tank standard; auxilliary 19-gallon tank optional
Turning circle, curb-to-curb (F-440/500) (ft)
42.3
48.6
54.8
57.9
47.8
51.5
WEIGHTS (pounds)
GVWR's available
10,000-11,500(F-350 SRW), -13,000 (F-350 DRW) 16,000 (F-450), 17,950, 19,000 (F-550)
Max. GCWR's available
23,000 (F350 SRW), 23500 (F-350 DRW), 30,000 (F-450), 33,000 (F- 450/550)
Max towing capacity, properly equipped
15700 (F-350 SRW), 16,000 (F-350 DRW), 21600 (F-450), 24,600 (F-550)
All Dimensions are in inches unless otherwise noted.
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