Front Crossmember and Suspension Removal

 
Article written by R SS. Published on 2010-09-08
MG Experience Library – Service:Suspension and Wheels Section
The contents of this article are © Copyrighted and published under the following terms:
Released under the terms of the CC Attribution-NonCommercial-ShareAlike 2.5 License

How to remove the front suspension and crossmember is a common question on the MG Experience forums.

I pulled mine last weekend, here are the steps I followed:

Procedure:

  1. Put jack stands under the castle rails and floor jack under the spring pan on the side you're starting.
  2. Remove tie rod end from steering arm - may be easier said than done.
    [A "pickle fork" or ball joint separator tool makes this step a lot easier - Ed.]
  3. Unbolt sway bar end (which you probably don't have)
  4. Unbolt the brake caliper and set aside. A smallish cardboard box is handy as a resting place.
  5. Remove lower trunnion bolt (41)
  6. Slowly release floor jack to lower the A-arm (spring pan), releasing the spring.
    The spring will go spoink and just sorta fall out. There isn't enough energy stored in it to be any danger.
  7. Remove wishbones and spring pan (optional) or just leave it hanging.
  8. Remove upper trunnion bolt (32) and remove kingpin/hub/rotor assembly.
  9. Repeat on the other side.
  10. Now that's all done, disconnect the steering rack and brake lines from the crossmember.
  11. Support the crossmember with a floor jack in the center.
  12. Remove the 4 large crossmember nuts (28) from the top with an impact wrench (inside engine bay on top of frame rails).
    [Note that there are nuts on both sides of the crossmember, with a threaded rod between them as you can see in the diagram below; if the nuts are rusty, it may help to let some of the crossmember weight hang on the rods. If you don't use an impact wrench, the opposite nut may spin. - Ed.]
  13. Lower crossmember without all that extra weight hanging on.

Reverse the order to reinstall.

[Ed. Note]: If you don't want to disassemble the front suspension in situ, you can follow this alternate procedure and drop the crossmember and suspension as one whole unit. This method is for more experienced mechanics.

  1. Take off steering rack.
  2. Disconnect sway bar from frame (if you have one)
  3. Disconnect metal brake lines.
  4. Remove 4 large nuts from the top with an impact wrench.
  5. Lower on floor jack (or let it fall if you're an animal).

Suspension diagram courtesy of Moss Motors

A couple of quick notes:

  • When you release the upper trunion bolt, the rotor/hub assembly will fall crashing to the floor. Best to have something soft like a pillow or small child under it.
  • Just to reiterate: The springs do NOT have all that much tension on them. Just lowering the jack slow and easy, bringing the spring pan down to the vertical, will release them without any problem.
  • If you can, leave the tie rod end locking nuts in place - just cracking them a tad if needed to release tension on the T/R. A spritz of spray paint on the threads - allow time for it to dry - is helpful in case you have to move them back more. A 3/4" (IIRC) open-end wrench and large vice grips are all you should need to remove the T/R (wrench for the tie rod, vice grips for the shaft). If you're replacing the rack boots, you'll have to remove the nuts anyway, so the spray paint gives you a starting point for alignment when you're done.
  • If you aren't removing the steering rack from the car, you can zip tie/wire tie/rope the rack in place using the fan pulley as a holder - just leave it dangling there.
  • Torque to the following specs, AFTER the car is on the ground and you've bounced it a couple of times.
Suspension Torque Specs
Front shock absorber bolts: 44 ft lbs
Brake caliper mounting bolts: 43 ft lbs
Hub nut, align to next hole: 40 ft lbs
Crossmember to body nuts: 55 ft lbs
Shock absorber pinch bolt: 28 ft lbs
Lower arm nuts: align to next
Split pin hole: 28 ft lbs
Lower arm/spring pan nuts: 22 ft lbs
Stabilizer bar link nut: 60 ft lbs
Swivel pin nut: align to next
Split pin hole: 60 ft lbs
Steering arm bolts: 63 ft lbs
Steering tie rod locknuts: 35 ft lbs
Steering rack to crossmember: 30 ft lbs
Disc brake rotor to hub: 43 ft lbs
Wheel lug nuts (Bolt-on): 60 to 65 ft lbs

Article edited by Skye Nott.

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~ Front Crossmember and Suspension Removal ~
Article by R SS – Published 2010-09-08

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Comments on "Front Crossmember and Suspension Removal" –

Front Crossmember and Suspension Removal rated 4 out of 10 based on 2 ratings and 5 user reviews.
Comment by Richard Ham at 2010-09-08 19:34:45
My Thoughts....
"Pickle Fork" removes tie rod ends in seconds and it has many uses around the shop .. its a great and sturdy pry bar.
Wish bones are actually 3 pieces and seperating the pieces may ease removal.
Comment by Wayne Sanders at 2010-12-06 18:57:27
Rated this: 8/10
I actually approached this job with some trepidation, having read about people having to pound out the four bolts that hold it in. I did everything here, except I left a floor jack centered on the crossmember while I removed the top nuts. Once all four were off, I lowered the jack about a quarter inch and rapped the crossmember once. All four bolts fell out. Maybe lucky? Maybe because no one bolt was taking all the pressure, I dunno.

Also, regarding the tie rod ends, I just loosened the boots for the tie rods, backed off the lock nuts one flat, and unscrewed the whole tie rod, leaving the ends in place. Why fight it? When you put it back together, leave enough rod for one flat tightening of the lock nuts.

Otherwise, spot on Rick!
Comment by David D at 2011-09-23 22:20:41
...pillow or small child...hysterical.
Comment by David D at 2011-09-23 22:21:15
...pillow or small child...hysterical.
Comment by David D at 2011-09-23 22:21:23
...pillow or small child...hysterical.

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