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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> Body & Frame >> Frames, Subframes & Crossmembers >> Frame & Bumpers >> Frame >> ISOLATOR, Rear Crossmember, Differential >> Removal >> Removal

ISOLATOR, Rear Crossmember, Differential: Removal: Removal

Fig 1: BATTERY AND CABLES
GC0079763Courtesy of CHRYSLER LLC
  1. Disconnect and isolate battery negative cable (2) from battery post.
  2. Raise and support vehicle. Refer to Vehicle Quick Reference/Hoisting - Standard Procedure
    Fig 2: TIRE AND WHEEL MOUNTING
    GC0079683Courtesy of CHRYSLER LLC
  3. On each side of vehicle rear, remove wheel mounting nuts (3), then tire and wheel assembly (1).
    Fig 3: HUB NUT
    GC0079730Courtesy of CHRYSLER LLC
  4. On each side of vehicle rear, while a helper applies brakes to keep hub from rotating, remove hub nut (1) from half shaft (2).
    Fig 4: Exhaust System
    GC0081121Courtesy of CHRYSLER LLC
  5. Remove rear exhaust system (2) (dual-outlet exhaust shown in Fig 4).
  6. Remove rear axle differential. Refer to Differential and Driveline/Rear Axle - 200MM - Removal
  7. Slide each axle half shaft from hub and bearing and remove from vehicle.
    Fig 5: CABLES AT EQUALIZER
    GC0079766Courtesy of CHRYSLER LLC
    NOTE: Due to short travel and low spring tension, it is not necessary to lock-out parking brake lever to service parking brake components.
  8. Disconnect front parking brake cable (5) at connector (3) to right rear parking brake cable (4) above axle differential.
    Fig 6: FRONT CABLE TO EQUALIZER
    GC0079767Courtesy of CHRYSLER LLC
  9. Remove front parking brake cable (3) from equalizer (2).
    Fig 7: FRONT CABLE AT LEFT FRONT OF CROSSMEMBER
    GC0079768Courtesy of CHRYSLER LLC
  10. Remove screw (2) fastening front parking brake cable (1) routing bracket to rear crossmember front flange (3).
    Fig 8: REAR CALIPER MOUNTING
    GC0079769Courtesy of CHRYSLER LLC
  11. If equipped with standard or premium disc brakes, on each rear disc brake:
    1. While holding guide pins from turning, remove disc brake caliper guide pin bolts (2).
    2. Remove brake caliper (1) from brake adapter (3) and pads.
    3. Guide brake caliper up through suspension, following brake hose path. Support caliper above rear suspension using with bungee cord or wire to keep caliper from overextending brake hose when crossmember is lowered.
    Fig 9: PUSHING BACK PISTONS IN BORE
    GC0095163Courtesy of CHRYSLER LLC
    CAUTION: When pushing pistons back into caliper bores, use only a trim stick as shown in Fig 9 or other suitable soft tool. Never use a screwdriver or other metal pry bar due to potential damage to braking surface of rotor, caliper, pistons or dust boots.
  12. If equipped with SRT8 disc brakes, on each rear disc brake, place trim stick (4) between brake pad (2) and outer edge of rotor (3).
  13. If equipped with SRT8 disc brakes, on each rear disc brake, using trim stick, slowly apply pressure against brake pad (2) until both pistons (on that side of caliper) are completely bottomed in bores of caliper half.
    NOTE: Repeat above procedure to opposite brake pad (1) and pistons as necessary.
    Fig 10: ACCESSING REAR CALIPER MOUNTING BOLTS
    GC0095165Courtesy of CHRYSLER LLC
  14. If equipped with SRT8 disc brakes, on each rear disc brake, support spring link (1) using a transmission jack (5) or other appropriate jack. Raise spring link just enough to access brake caliper lower mounting bolt (4) from above compression link (2).
    Fig 11: REAR CALIPER MOUNTING - SRT8
    GC0079734Courtesy of CHRYSLER LLC
  15. If equipped with SRT8 disc brakes, on each rear disc brake, remove the lower and upper caliper mounting bolts (1).
  16. If equipped with SRT8 disc brakes, on each rear disc brake, remove brake caliper (2) with pads from knuckle and brake rotor. Hang assembly out of way using wire or a bungee cord. Use care not to overextend brake hose when doing this.
  17. If equipped with SRT8 disc brakes, remove jack from under spring link.
    Fig 12: RELEASE WHEEL SPEED SENSOR CONNECTOR
    GC0079770Courtesy of CHRYSLER LLC
    NOTE: To remove wheel speed sensor connector from body wiring harness connector, move retaining clip (2) and pull sensor connector outward.
    Fig 13: SENSOR CONNECTION TO BODY CONNECTOR
    GC0079771Courtesy of CHRYSLER LLC
  18. Remove wheel speed sensor connectors (3 and 4) from body wiring harness connector (1) located in luggage compartment floor pan (2).
    Fig 14: LEFT/RIGHT REAR WHEEL SPEED SENSOR ROUTING
    GC0079772Courtesy of CHRYSLER LLC
  19. Unclip left wheel speed sensor cable (3) from routing clip (1) near body connector.
    Fig 15: SHOCK MOUNTING - LOWER
    GC0079751Courtesy of CHRYSLER LLC
  20. On each side of vehicle, remove shock absorber (1) lower mounting bolt (2) and nut (4).
    Fig 16: Marking Location Of Crossmember Mount To Body
    GC0079773Courtesy of CHRYSLER LLC
    1 - BODY
    2 - MARKER (OR CRAYON)
    3 - CROSSMEMBER BUSHING FLANGE
  21. Carefully mark location of rear crossmember on body at all four mount (bushing) locations using a marker or crayon. Do not use a scratch awl to mark location. 
  22. Position an extra pair of jack stands under and support forward end of engine cradle to help stabilize vehicle during rear suspension removal/installation.
    Fig 17: JACK POSITIONED BENEATH CROSSMEMBER
    GC0095726Courtesy of CHRYSLER LLC
  23. Position under-hoist utility jack or transmission jack (2) under center of rear crossmember (1). Raise jack head to contact crossmember and secure in place.
    Fig 18: FILLER TUBE ASSEMBLY
    GC0079748Courtesy of CHRYSLER LLC
    WARNING: Before opening fuel system, review all Warnings and Cautions.
  24. Remove fuel filler tube. Refer to Fuel System/Fuel Delivery/TUBE, Fuel Tank Filler - Removal
    Fig 19: AWD CROSSMEMBER SPACERS
    GC0079752Courtesy of CHRYSLER LLC
    NOTE: If equipped with AWD, when removing crossmember mounting bolts in following step, be sure to not to misplace spacers (1) between crossmember mounts (2) and body.
    Fig 20: REAR CROSSMEMBER MOUNTING BOLTS
    GC0095727Courtesy of CHRYSLER LLC
  25. Remove both front (3) and both rear (2) mounting bolts fastening crossmember (1) in place.
  26. Slowly  lower crossmember using jack until crossmember is at a comfortable working level.
    Fig 21: COIL SPRING AND SHOCK ASSEMBLY
    GC0095728Courtesy of CHRYSLER LLC
  27. Remove coil springs and isolators (1, 2 and 5) from spring links.
    Fig 22: Rear Axle-to-Crossmember Bolts
    GC0081134Courtesy of CHRYSLER LLC
  28. Remove bolt (1) from bushing prior to removal.
    Fig 23: TOOLS ASSEMBLED FOR REMOVAL
    GC0080362Courtesy of CHRYSLER LLC
    NOTE: Prior to using Special Tool 9520, lubricate Bolt (1) threads to provide ease of use and promote tool longevity.
    NOTE: When installing Thrust Bearing (6), be sure to place hardened side toward Bolt head.
  29. Assemble tools (See following list) over bushing as shown in Fig 23.
    • (1) Bolt
    • (2) Nut
    • (3) Washer
    • (4) Receiver 9520-4
    • (5) Remover 9520-3
    • (6) Thrust Bearing
  30. While holding Nut (2) from rotating, using hand tools  , tighten Bolt (1) until Remover (5) comes in contact with bushing and Receiver (4) sets squarely against crossmember.
  31. Continue to tighten Bolt (1), pressing bushing out of crossmember.
  32. Remove tools with bushing.