What does this diagram show?

It is an exploded parts diagram of the No. 4 crossmember and reinforcement for the Ford frame, with separate views for the F-350 Chassis Cab/F-Super Duty Chassis Cab, F-150 (4x2), F-150 (4x4 with stabilizer bar), and F-150/250/350 and Bronco.

Does the diagram apply to the Ford Bronco?

Yes. View B at the bottom is labeled 'F-150-250-350 AND BRONCO' and shows how the crossmember attaches to the frame rail on those models.

Are different crossmember setups shown for different trucks?

Yes. One assembly is labeled for the F-350 Chassis Cab and F-Super Duty Chassis Cab, another with a stabilizer-bar bracket arrangement is labeled for the F-150 (4x2) and F-150 (4x4 with stabilizer bar), and detail Views A and B cover the F-350 Chassis Cab and the F-150/250/350/Bronco respectively.

Does the diagram list part numbers or torque specs?

No. It uses numbered callouts (1 through 9) only; the sole reference number printed is the illustration ID N6405-D. No part numbers or torque values are shown.

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Ford Bronco & F-150/F-250/F-350 No. 4 Frame Crossmember Exploded Diagram

No. 4 crossmember and frame reinforcement exploded drawing with numbered callouts and views

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Exploded assembly drawing of the No. 4 crossmember and frame reinforcement with numbered callouts and detail views.

AI caption July 2011 · Photo 94 of 224

This exploded parts diagram (Ford illustration number N6405-D) shows the No. 4 frame crossmember and reinforcement assemblies for Ford F-Series trucks and the Bronco. The upper portion of the drawing depicts two frame crossmember configurations: one labeled for the F-350 Chassis Cab and F-Super Duty Chassis Cab (callout 1), and another crossmember/reinforcement (callout 6). A center section shows a crossmember arrangement with brackets and fasteners (callouts 2, 3, 4, 4A, 5) labeled for the F-150 (4x2) and F-150 (4x4 with stabilizer bar). Two detail views at the bottom show fastener attachment points where the crossmember meets the frame rail: View A applies to the F-350 (Chassis Cab) with callouts 6, 7, 8, and 9, while View B applies to the F-150, F-250, F-350, and Bronco with callouts 6 and 7. The diagram uses numbered callouts rather than printed part numbers or torque values, so it serves primarily as an assembly/location reference showing how the No. 4 crossmember, reinforcement, brackets, and bolts fit together on the frame for each model variant. No model year is printed on the drawing itself.

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Frequently asked questions

What does this diagram show?: It is an exploded parts diagram of the No. 4 crossmember and reinforcement for the Ford frame, with separate views for the F-350 Chassis Cab/F-Super Duty Chassis Cab, F-150 (4x2), F-150 (4x4 with stabilizer bar), and F-150/250/350 and Bronco.
Does the diagram apply to the Ford Bronco?: Yes. View B at the bottom is labeled 'F-150-250-350 AND BRONCO' and shows how the crossmember attaches to the frame rail on those models.
Are different crossmember setups shown for different trucks?: Yes. One assembly is labeled for the F-350 Chassis Cab and F-Super Duty Chassis Cab, another with a stabilizer-bar bracket arrangement is labeled for the F-150 (4x2) and F-150 (4x4 with stabilizer bar), and detail Views A and B cover the F-350 Chassis Cab and the F-150/250/350/Bronco respectively.
Does the diagram list part numbers or torque specs?: No. It uses numbered callouts (1 through 9) only; the sole reference number printed is the illustration ID N6405-D. No part numbers or torque values are shown.