Steering System, Power

The Ford Integral Power Rack-and-Pinion Steering Gear is a 15:1 constant ratio.

The gear housing and valve housing are combined into a one-piece aluminum die casting. The gear design incorporates quick connect fittings for the pressure and return lines that allow the lines to swivel; this is normal and does not indicate loose fittings. If the fittings leak, check to ensure that they are tightened to 14-20 Nm (10-15 lb-ft). Do not over-tighten. If the leak is not corrected, replace the fitting seals.

The gear is a hydraulic-mechanical unit which uses an integral piston and rack design to provide power-assisted vehicle steering control. Internal valving directs pump flow and controls pressure, as required, to reduce steering effort during operation. The unit contains a rotary hydraulic fluid control valve integrated to the input shaft and a boost cylinder integrated with the rack.

Item	Part Number	Description
1	3548	Gear Housing
2	3D728	Pinion Seal
3	3D517	Valve Assy
4	3D517	Plastic Rings
5	3D525	Input Shaft Bearing
6	3D526	Input Shaft Seal
7	3D728	Snap Ring—Seal Retainer
8	3D527	Input Shaft Dust Seal
9	3552	Pinion Bearing
10A	34988-S2	Pinion Bearing Locknut
11B	3568	Pinion Bearing Plug
12	3575	Rack Assy
13	3E501	Backup O-Ring-Rubber
14	3E501	Piston Seal—Plastic
15	3E501	Inner Rack Seal
16	3E501	Rack Bushing O-Ring
17	3576	Rack Bushing
18	3E501	Outer Rack Seal
19	3568	Housing End Plate
20	97630-S	Snap Ring
21	N804842-S	Travel Restrictors
22	3C560	Inner Bellows Clamp
23	3332	Bellows
24	3C650	Outer Bellows Clamp
25	387580-S2	Spiral Pin
26C	3280	Tie Rod Assy
27D	385032-S2	Jam Nut
28	3A130	Tie Rod End Assy
29E	385002-S100	Castellated Nut
30	3F515	Rack Yoke
31	3F515	Yoke Spring
32F	3580	Yoke Plug
33G	3580	Yoke Plug Locknut
34	3K762	Breather Tube
35	3A717	Right Turn Transfer Tube
36	3A714	Left Turn Transfer Tube
37	3E592	Umbrella Seal
A		Tighten to 41-54 Nm (30-40 Lb-Ft)
B		Tighten to 54-68 Nm (40-50 Lb-Ft)
C		Tighten to 75-88 Nm (55-65 Lb-Ft)
D		Tighten to 48-68 Nm (35-50 Lb-Ft)
E		Tighten to 48-63 Nm (35-47 Lb-Ft)
F		Tighten to 5-5.6 Nm (45-50 Lb-In)
G		Tighten to 27-34 Nm (20-25 Lb-Ft)

The Ford Model CII power steering pump is a belt-driven 10-slipper type pump with a fiberglass-filled nylon reservoir. The reservoir is attached to the rear side of the aluminum pump housing and the pump body is encased within the housing and reservoir. The pump design incorporates a pump pressure fitting that allows the pump pressure line to swivel. This is normal and does not indicate a loose fitting.

A pressure-sensitive identification tag is attached to the reservoir body. This tag indicates the basic model number (HBC) and the suffix.

 CAUTION: Always use the model codes on the tag when requesting service parts in case of any differences in internal components. Refer to Section 11-00 for an example of this tag.