DIY Replacement of Lower Control Arm and Bushings: Toyota

Updated on May 4, 2018
hardlymoving profile image

Hardlymoving writes about do-it-yourself automobile maintenance on various makes and models.

Control arm (suspension arm) for Camry
Control arm (suspension arm) for Camry

Lower Control Arm Overview

This do-it-yourself article provides instructions for replacing either the driver- or passenger-side lower suspension control arm on Toyota and Lexus vehicles, including:

  • RX300 '99-'03
  • ES300 '92-'01
  • Avalon '95-'97
  • Camry '97-'01

This article shows the control arm being replaced on a 1997 Toyota Camry; the video at the end of the article shows the control arm and other suspension parts being replaced on a 2001 Avalon.

Note: Early model vehicles have their sway bar link attached to the control arm itself instead of to the suspension strut.

A visual inspection of the control arm bushing can be deceiving. If you can see minute cracks, with the wheels off, the bushing may still be in reasonable condition. However, the crack(s) may be hiding a larger rubber separation that can only be seen after removing the control arm, inserting a metal rod in the rear bushing's metal sleeve, and wiggling it. In a worst-case scenario, the rear bushing’s rubber may break away from the bushing's outer casing, which will result in steering control issues during acceleration, braking, and riding on rough pavement.

Indications of Worn or Broken Control Arm Bushings:

  • When accelerating from a stop, the car erratically changes steering direction.
  • When accelerating and turning from low speed, you feel a thumping or tugging sensation is noticed (shaking or shimmying of the steering wheel).
  • Front end makes a clunking noise going over bumps (this noise could also be caused by sway bar links and bushings).
  • Premature wear of the front tires. Center treads may appear scuffed.

The symptoms above might also be caused by wear to the ball joints, outer and inner tie rod ends, struts, strut mounts, sway bar bushings and links. With high-mileage vehicles, my preference is to replace many of these items at the same time, to provide long-term labor savings for the customer.

Should I Replace Just the Bushings, or the Entire Control Arm as Well?

I think it's more convenient to replace the old control arm with a new one, along with new bushings. Although it's true that new bushings (in both front and rear) are about half the price of a new control arm (at least for a Camry), if you don't have a high-pressure press, you will have to ask a machine shop to take the old bushings out of the arm. This means you have to drop off the control arm, wait for the bushings to be replaced, pick up the control arm, and pay for the labor.

How Is the Control Arm Attached?

The control arm, which bolts to the front sub-frame of the vehicle, contains two rubber bushings: the front, which usually maintains its integrity, and the rear, which absorbs the most stress and hence may eventually split or break. The other end of the control arm is attached to the steering knuckle via the lower ball joint. With most Toyota vehicles, the control arm is bolted to the ball joint, which makes it relatively easy to remove the control arm.

What Do Most Repair Shops Charge to Fix/Replace a Control Arm?

I have seen typical quotes of $350 to $400 per wheel for parts and labor, whether they put in a new control arm complete with bushings, or just replace the front and rear bushings. I have never encountered a bent or damaged control arm, so replacing just the bushings as opposed to replacing the control arm makes no difference to the way the car drives.

How Long Does it Take to Replace a Control Arm?

With the correct tools on hand, it will take approximately one hour at a moderate pace. Add around 1/2 hour if replacing the bushings using a hydraulic press.

Typical Toyota Control Arm Diagram

Diagram of Toyota Camry control arm assembly
Diagram of Toyota Camry control arm assembly

Control Arm Removal Process

1. Disconnect the sway bar link from the suspension strut. This must be performed on both the driver and passenger side. This will allow the sway bar to be rotated away from the control arm which will ease removal and installation.

Camry suspension strut sway bar bracket
Camry suspension strut sway bar bracket

2. Position the sway bar link away from the suspension strut assembly.

3. Detach the lower portion of the ball joint from the control arm. A breaker bar or high-torque impact driver may be needed to loosen the two (2) nuts and one (1) bolt that secure the ball joint to the control arm; they are usually on very tight. I find both these tools very useful to have around when working on cars, and worth the investment.

Note: If you buy a control arm with a new ball joint attached, you can detach the ball joint from the steering knuckle. This involves:

a. Removing the locking nut from the axle shaft.

b. Detaching the suspension strut from the steering knuckle.

c. Pulling the axle shaft from the steering knuckle to expose the ball joint nut for removal.

e. Removing the ball joint nut.

e. Using either a pickle fork or a ball joint removal tool to separate the ball joint shaft from the steering knuckle.

Here's an article with illustrated instructions for replacing the ball joint.

Camry ball joint bolt and nut
Camry ball joint bolt and nut

4. Separate the control arm from the ball joint by pressing down on the control arm until the ball joint studs clear the control arm holes. Then swing the ball joint away from the control arm.

Camry Control Arm / Ball Joint Separation
Camry Control Arm / Ball Joint Separation

5. Remove the front control arm bushing bolts. These are torqued on very tight and require either a breaker bar or high-torque impact driver to loosen. Note: The rear bolt is longer than the front bolt.

Camry front control arm bushing bolts
Camry front control arm bushing bolts

6. Remove the rear control arm bushing bolt. Apply some penetrating oil to ease removal. The nut that secures the bolt contains a tab to prevent it from spinning when loosening or tightening torque is applied to the bolt. There is very little clearance to insert an open-end wrench to stop the bushing nut from spinning. Let the tab do its job; however, do not let the nut get lost inside the top of the rear control arm mounting frame. Use your finger tips to gently pull the nut out after it has spun free from the bolt.

Camry Rear Control Arm Bushing
Camry Rear Control Arm Bushing | Source

7. Pull the ball-joint end of the control arm away from the steering knuckle; then pull and wiggle out the rear of the control arm away from the subframe control arm bracket. Do not forget to transfer the front bushing's spacer from the old arm to the new arm.

New Camry control arm with new front and rear bushings
New Camry control arm with new front and rear bushings
Camry rear control arm bushing nut with anti-spin tab
Camry rear control arm bushing nut with anti-spin tab

Installation of the New Control Arm

You can install the new control arm by just reversing the steps for removing the old one. The difficult part is screwing the rear control arm bolt onto the nut. Push or screw the bolt through the rear bushing until the tip of the bolt is barely above the subframe rear control arm bracket; then using your fingertips, position the nut where you think the tip of the bolt is protruding and begin turning the bolt. When the bolt threads catch, you can take your fingers off the nut. The nut will spin free until the tab catches the rear control arm mount which will prevent the nut from further spinning.

After completion of the installation, a front end alignment may be in order, because replacing any component involved in steering or alignment will usually disrupt the existing alignment.

Video: Replacing the Front Strut, Control Arm, and Sway Bar Link

This video shows these front suspension parts being replaced on a 2001 Avalon.

Questions & Answers

    Comments

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      • profile image

        jeph 

        19 months ago

        hi,

        do you have a DIY for 2006 avalon complete front and rear struts and sway bar replacements ?

        Thanks

      • hardlymoving profile imageAUTHOR

        hardlymoving 

        23 months ago from Memphis, TN

        Jake,

        If attempting to secure the front bushing bolt with the tab nut, then I understand what you're going through. From my recollection, I used an electric ratchet wrench to turn continuously the bolt until the threads in the tab nut caught.

      • profile image

        Jake 

        23 months ago

        I'm not sure I understand... better off replacing what? The subframe? I have a brand new control arm... looking at your pictures I see a nut with an anti-spin tab, and will quote "The difficult part is screwing the rear control arm bolt onto the nut." is this in regards to the front control arm? I may have misplaced that nut... I thank you for your time in writing this article and your time in responding to my novice mechanic questions!

      • hardlymoving profile imageAUTHOR

        hardlymoving 

        23 months ago from Memphis, TN

        Jake,

        If its that bad, then your subframe that supports the suspension, engine and transmission is bent.

        You're better off looking at replacing it. You can get one from the salvage yard.

      • profile image

        Jake 

        23 months ago

        You say you've never encountered bent, was involved in an accident that bent the control arm and the bushing area. Bolt through bushing no longer grabs anything, and the two by the dram are off just an 1/8in so I can't get them in, using a jack to lift the suspension strut doesn't allow me the movement that doing it by muscle does. Other than getting a muscle person to help me, do you have any suggestions?

      • profile image

        If you are after torque values 

        23 months ago

        They are in the first diagram foot lbs are the second number by each bolt

      • profile image

        Peter K 

        2 years ago

        Very clearly explained. Thank you

      • profile image

        Kevin 

        2 years ago

        Thank you very much for sharing and teaching.

      • profile image

        Harold Jackson 

        2 years ago

        I was hoping you would include torque values for the reassembly.

      • profile image

        Jo Ma 

        3 years ago

        Excellent article, very clear.

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