VI. STEERABLE DRIVE END ASSEMBLYD.Spindle Yoke Assembly1.Pack the roller bearing with the proper lubricantand press into place in the spindle yoke. (Seefig. 35.)2.Coat the outside circumference of the outerdriveyoke seal with liquid sealant. Press the seal intoplace in the spindle yoke. (See fig. 36).3.Rest the spindle yoke with its inboard side down.Install the lower kingpin mounting studs.E.Lower Kingpin Bracket Installation1.Screw the lower kingpin ball stud into the lowerkingpin until it just bottoms. Start the lowerkingpin ball stud jam nut onto the stud.2.The lower kingpin brackets with integral tie rodarms are handed. The left arm goes on the leftsteerable drive end and will position the tie rod tothe rear when installed on the axle.Fig. 35Fig. 363.Position the proper bracket on the studs or bolts,whichever is used., projecting through thespindle yoke. Install the hardened washers andlocknuts. Tighten to the specified torque. (Seefig. 25).F.Spindle Yoke to Suspension Yoke Assembly1.With the spindle yoke upright , position the outerdrive yoke horizontally. If the spindle yokeassembly includes the brakes and wheel hub itshould be attached to and supported by asuitable jack or hoist. Position the lower kingpinball (well lubricated) under the lower kingpinsocket in the suspension yoke. (See fig. 21).The spindle yoke assembly must be tiltedoutward at the top slightly to allow the ball stud toenter its socket.2.Raise the spindle yoke assembly until the ballstud enters the socket. Align the upper kingpinmounting holes with the corresponding holes inthe spindle yoke.3.Install only three bolts. (See fig. 13). The lowerrear bolt is the steering stop bolt. Washersunder the fourth bolts head will limit themaximum turn angle on the steerable drive end.The bolts should pass through the camberadjusting shim or shims. (See fig. 13). Thesame number of washers and the same shimsshould be reused in a reassembly of parts thathave previously been together. Also refer toSection IIIll-D and E. Tighten locknuts tospecifications.G.Brake Assembly Installation1.Apply a bead of liquid sealant to the spindleflange or the spindle yoke. See Service Bulletin738 407, Page 22. Position the spindle on thespindle yoke piloting on the roller bearing outerrace, aligning the bolt holes, and orienting thewheel bearing adjusting lock-washer keyway toface upwards. Position the brake assembly onthe spindle flange pilot, aligning the bolt holes,orienting the actuator or wedge chamber on thehorizontal centerline at the front.2.Install the bolts from the brake spider side, usinghardened washers and locknuts on the inside ofthe spindle yoke. Torque to specification-17-
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