Specifications

48
2006 F-250/F-350
Super Duty Pickups
F-250/F-350 SD PICKUPS
July 2005
F-250/F-350 SD Pickups
Suspensions
FRAME SPECIFICATIONS
Cab Style
Super Duty
Series/Model
Wheelbase
(in.)
No. Of
Crossmembers
Maximum Side Rail
Section (Height x
Width x Thickness)
(in.)
(1)
(1) Measured to inside of metal.
Section
Modulus
(cu. in.)
(2)
(2) Cross-sectional modulus calculated at back of cab, to inside of metal.
Yield
Strength
(psi)
Regular Cab F-250/F-350 Pickup/Box Delete 137.0 5 6.87 x 2.36 x .264 6.7 36,000
SuperCab F-250/F-350 Pickup 141.8 6 6.87 x 2.36 x .264 6.7 36,000
F-250/F-350 Pickup/Box Delete 158.0 6 6.87 x 2.36 x .264 6.7 36,000
Crew Cab F-250/F-350 Pickup 156.2 7 6.87 x 2.36 x .264 6.7 36,000
F-250/F-350 Pickup/Box Delete 172.4 7 6.87 x 2.36 x .264 6.7 36,000
SHOCK ABSORBER SPECIFICATIONS
Super Duty
Model
Wheelbase
(in.) Usage
Front Rear
(1)
(1) Staggered rear shock absorbers.
No.
Used
Piston Dia.
(in.) Type
No.
Used
Piston
Dia. (in.) Type
Pickup All Std. 2 1.38 Gas-Pressurized 2 1.38 Gas-Pressurized
Pickup All Opt.
(2)
(2) Included with FX4 Off-Road Package. Unique Rancho branded shock absorbers.
2 1.38 Gas-Pressurized 2 1.38 Gas-Pressurized
SPRING SPECIFICATIONS — FRONT COIL
Super Duty
Series/Model
Combined Rating
@ Ground (lbs.)
Height of Spring @
Design Load (in.)
Inside Dia.
(in.)
Wire Dia.
(in.)
Deflection Rate @ Ground
(lbs. per in. ea.)
F-250-350 4x2 3650 12.0 4.0 .795 355
3800 12.0 4.0 .807 375
3950 12.0 4.0 .807 375
4100 12.0 4.0 .807 395
4250 12.0 4.0 .807 395
4400 12.0 4.0 .827 415
4550 12.0 4.0 .827 415
4700 12.0 4.0 .827 430
4850 12.0 4.0 .827 430
F-250-350 4x4 4000 14.7 4.1 .673 349
4400 14.7 4.1 .691 383
4800 14.7 4.1 .719 410
5200 14.7 4.1 .728 430
5600 14.7 4.1 .758 469
6000 14.7 4.1 .771 499
SPRING SPECIFICATIONS — REAR LEAF
Super Duty
Series/Model
Combined
Rating @
Ground
(lbs.)
No.
of
Leaves
Total
Thickness
@ Pad (in.)
Overall
Length
(in.)
Width
(in.)
Deflection Rate
(lbs. per in./
Spring)
(1) (2)
(1) Pickup and Box Delete models include two-stage, variable rate springs.
(2) Lists first stage/second stage/third stage as applicable.
Rating Each
@ Pad (lbs.
per Spring)
Main Leaf & Auxiliary Spring (Including Spacer)
F-250 Pickup
(3)
(3) Auxiliary rear spring available and included with Camper Package and Heavy Service Package for Pickup Box Delete only.
7000 6 4.18 58.1 3.00 330/650/1290 3133
F-350 SRW Pickup 7000 6 4.18 58.1 3.00 330/650/1290 3133
F-350 DRW Pickup 9000 6 4.37 58.1 3.00 457/902/1422 4024
Main Leaf Only
F-250 Pickup 6100 5 2.66 58.1 3.00 334/776 2695
F-350 SRW Pickup 7000 5 2.66 58.1 3.00 330/650 3133
Technical Specifications cont’d
06_F-250F-350 PU.fm Page 48 Thursday, September 1, 2005 7:59 AM