OEM Dodge Magnum Differential Mount

Dodge Magnum Differential Mount Parts and Q&A

• Differential Mount, Rear Upper
  4578085AA
  Q:

  How to install the Differential Mount on Dodge Magnum?

  A:

  Inserting the tapered end of the new bushing into the crossmember bushing bore's forward end is the first step of the installation process. Ensure that the thrust bearing's hardened side faces the bolt head. The bolt, disc 9520-1, bushing, nut, washer, installer 9520-2 thrush bearing are to be assembled through crossmember and bushing. Into the end of the bushing, insert the installer and the disc into the opposite end of the crossmember bushing bore. With the nut held to prevent rotation, tighten the bolt to press the bushing into the crossmember until the installer bottoms against the bushing bore; remove the tools. Install the differential mounting bolt from the rear through the mount bushing, then raise the crossmember until the shocks pass through the pockets in the spring links but do not install the bolts yet. Use a jack to lift the crossmember until you can install but do not tighten the mounting bolts on the left side. Gradually lower the jack to permit the right side of the crossmember to drop just sufficiently for the coil spring installation. Also, check that the isolators are fully installed on the ends of the spring. Position the coil spring with isolators in the spring pocket and the top part aligned with the body mount. Next, jack up the axle, guiding the coil spring and lower end of the shock absorber into place. Stop when the lower mounting hole of the shock absorber aligns with the spring link. Without tightening, install the lower shock mounting bolt & nut. For all-wheel-drive vehicles, place spacers on top of the right crossmember mount bushings prior to raising the crossmember. Lift the right hand of the Crossmember into position and install the right hand mounting bolts, snuggling them but not tightening fully. Take off the left-side mounting bolts and slowly lower the jack to allow the left side of the crossmember to drop for the coil spring installation (insulators must be installed). Use the same procedure for the left side of the coil springs and then move the crossmember until the mounts are aligned with the location marks on the vehicle body. The distance between the tension link and weld flange must be at least 12 mm. Tighten all four crossmember mounting bolts to 180 Nm. Remove the jack and install the fuel filler tube. Clip the left rear wheel speed sensor cable to the routing clip. Pair and insert the left-hand rear wheel speed sensor connector into the body wiring harness connector, ensuring the retaining clip is secure. For standard or premium disc brakes, place the caliper guide pins into the caliper adapter and guide the caliper down through the rear suspension before inserting and tightening the guide pin bolts to 31 Nm and running the brake hose correctly. To install SRT8 disc brakes, support the spring link, slide the caliper with its pads over the brake rotor, fit the caliper mounting bolts, and tighten to 130 Nm. Above the rear crossmember, route the parking brake cable, connect the front parking brake cable, and install the routing bracket to the crossmember. Pull an axle half shaft through the hub and bearing and install the hub nut without tightening, and install the rear axle differential. With a helper applying the brakes, tighten the hub nut to 213 Nm and install the rear exhaust system. Next, install the tire and wheel assemblies and tighten the wheel mounting nuts to 150 Nm. After lowering the vehicle, connect the battery negative cable. Then, pump the brake pedal to ensure it is firm. Position the vehicle on an alignment rack. After that, tighten the nuts on the lower mounting bolt of both shock absorbers to 72 Nm. Finally, carry out a wheel alignment with particular attention to thrust angle.
• Differential Mount, Rear Lower
  4578191AA
  Q:

  How to service the Differential Mount on Dodge Magnum?

  A:

  To service the differential mount, first disconnect and isolate the battery negative cable from the battery post. Raise and support the vehicle, then remove the wheel mounting nuts and tire and wheel assembly from each side of the rear. While a helper applies brakes to prevent hub rotation, remove the hub nut from the half shaft on each side. Next, remove the rear exhaust system and the rear axle differential. Slide each axle half shaft from the hub and bearing and disconnect the front parking brake cable at the connector to the right rear parking brake cable above the axle differential. Remove the front parking brake cable from the equalizer and the screw fastening the front parking brake cable routing bracket to the rear crossmember front flange. If equipped with standard or premium disc brakes, hold the guide pins from turning and remove the disc brake caliper guide pin bolts, then remove the brake caliper from the brake adapter and pads, guiding the caliper up through the suspension and supporting it above the rear suspension with a bungee cord or wire. When pushing pistons back into caliper bores, use only a trim stick or other suitable soft tool. If equipped with SRT8 disc brakes, place a trim stick between the brake pad and outer edge of the rotor, applying pressure against the brake pad until both pistons are completely bottomed in the bores of the caliper half. Support the spring link using a transmission jack or other appropriate jack, raise it just enough to access the brake caliper lower mounting bolt from above the compression link, and then remove the lower and upper caliper mounting bolts, followed by the brake caliper with pads from the knuckle and brake rotor, hanging the assembly out of the way with care not to overextend the brake hose. Remove the jack from under the spring link, then remove the wheel speed sensor connectors from the body wiring harness connector located in the luggage compartment floor pan, unclipping the left wheel speed sensor cable from the routing clip near the body connector. On each side of the vehicle, remove the shock absorber lower mounting bolt and nut. Mark the location of the rear crossmember on the body at all four mount locations, then position an extra pair of jack stands under and support the forward end of the engine cradle. Position a utility jack under the center of the rear crossmember, raise it to contact the crossmember, and secure it in place. Remove the fuel filler tube, and if equipped with AWD, ensure not to misplace spacers between the crossmember mounts and body when removing the mounting bolts fastening the crossmember. Slowly lower the crossmember using the jack until it is at a comfortable working level, then remove the coil springs and isolators from the spring links. Remove the bolt from the bushing prior to removal, lubricate the bolt threads before using Special Tool 9520, and ensure the hardened side of the Thrust Bearing is placed toward the bolt head during installation. Assemble the necessary tools over the bushing, tighten the bolt until the remover contacts the bushing and the receiver sets squarely against the crossmember, and continue to tighten the bolt to press the bushing out of the crossmember before removing the tools with the bushing.