Question 1

How to properly remove and install a rear control arm and trailing arm on Mazda 3?

Accepted Answer

Unscrew the lug nuts of the wheels, raise the back of the vehicle, and stabilize it with jack stands ensuring that the front wheels will not fall over and then loosen the wheel. Prop the rear lower control arm using a floor jack, loosen the lower shock absorber mounting bolt, lower the floor jack a few inches, disconnect the brake hose of the bracket, and take the arm out of the car. To install, undo the steps to the reverse and use the specified number of fasteners to tighten them to the required torque after lifting the suspension to an approximate normal ride height with a floor jack, with the level of the mark labeled IN on the upper arm facing the interior of the vehicle. Take the rear coil spring and arm out of the car but ensure that you loosen the EVAP canister mounting bolts to free the inner arm mounting bolt/nut. Installation: When installing the cam adjuster bolt, match marks must be aligned, a new nut should be used and the fasteners corroded to the recommended torque once the raising of the suspension is complete. Flooring jack on the rear lower control arm, take out lower shock absorber mounting bolt and arm. To install it, follow the reversed procedure and tighten the fasteners to the required torque with raising the suspension, so that the rib section of the arm is positioned towards the front of the vehicle. When installing a new trailing arm, detach the caliper dust shield and the four screws on the inboard side of the trailing arm then detach the wheel spindle, or in case you are reusing the same arm, leave the spindle attached. Disassemble the brake hose and brake line fittings of the trailing arm, the parking brake cable fittings of the caliper and trailing arm, and the rear auto leveling sensor lower side (where present). The lower control arm should be supported on a floor jack under the coil spring pocket, the lower shock absorber bolt removed and the trailing arm pivot bushing should be inspected to determine whether it is worn or not and it should be taken to an automotive machine shop and replaced accordingly. To install, undo the procedure the reverse, with new fasteners, lock all fasteners to appropriate torque requirements by lifting the suspension and verifying and tightening the rear wheel alignment where necessary.

Question 2

What precautions should be taken when using a Control Arm during suspension bolt replacement and lower arm removal on Mazda 6?

Accepted Answer

Warning All the suspension bolts must be changed with new ones when assembling. To remove the lower arms of 2008 and earlier model first loosen the lug nuts of the wheel on the side to be removed, raise the front side of the car, place on jackstands and take off the wheel. Detach the steering shaft and steering gear, not to rotate the steering wheel that would damage airbag clockspring. Unhook the tie-rod ends to the steering knuckles, then loosen screws of steering gear. Dis-attach the exhaust pipe(s) of the exhaust manifold(s) and place floor jack at the back of the subframe. Unscrew the front subframe mounting bolts, un screw the rear subframe mounting bolts and jack the rear of the subframe down using the jack. In either lower arm, loosen the lower arm-to-balljoint nut, and place a block of wood beneath the outer CV joint of the driveaxle to avoid harm, and a balljoint removal tool to separate the balljoint. When removing the front lower arm, also remove the damage fork mounting bolt in the front lower control arm, the arm-to-subframe mounting bolt, and then the lower control arm. To work on the 3.7L V6 models, on the right hand, in 2009 and beyond, one will have to remove the front exhaust pipe. Disassemble the ABS sensor and bracket, brake hose, the stabilizer control link upper nut, the control arm-to-knuckle nuts and lower arm-to-subframe through bolt nut. Take out the subframe support bracket mounting nut and bolts, and support the subframe on a jack, loosen the subframe mounting bolts, and then bring the subframe down to reach the bolts at the rear of the arm, and make sure to remove any mounting brackets of hoses attached to the subframe. Disassemble the subframe of the vehicle by taking out the lower arm rear mounting bolts, front through bolt and remove the arm. The top end of the steering knuckle is connected to the upper control arm by a balljoint and to two spots on the chassis by the pivot bolts. Unscrew the wheel speed sensor and 3 upper strut-to-body nuts, detach the balljoint on top of the steering knuckle, and unscrew the inner arm mounting bolts and the upper arm. In the case of 2009 and subsequent models, disassemble the transverse member with the removal of the transverse member mounting nuts then the transverse member itself. Check distortion of the control arm and wear of bushings, replacing where needed, and never make the attempt to straighten a bent control arm. Installation is the opposite of removal, which is to make sure that all the fasteners are tightened up to required torque values. Positively lift the outer end of the control arm using a floor jack before securing the fasteners of the control arm to create simulated normal ride height. In the case of upper control arms, the pivot bolts are to be installed loosely and a 0.25-inch diameter drill bit through the two holes that are cut just below the bushing is used to position the appropriate height setting of the pivot bolts. Lastly, attach the wheel and lug nuts and then lower the vehicle and screw-in the lug nuts until they reach the required torque and after finishing the job it is always recommended to check front wheel alignment and adjust the lug nuts as needed.

Genuine Mazda Control Arm

210 Control Arms found

Mazda Upper Control Arm Part Number: B45C-28-C10

Mazda Upper Control Arm Part Number: GP9A-28-C10

Mazda Upper Control Arm Part Number: GEA1-34-250

Mazda Upper Control Arm Part Number: GS3M-34-200

Mazda Upper Control Arm Part Number: GS3M-34-250

Mazda Upper Control Arm Part Number: G26A-28-C10

Mazda Lower Control Arm Part Number: KD35-28-350

Mazda Upper Control Arm Part Number: GEA1-34-200

Mazda Lower Control Arm Part Number: KD35-28-300

Mazda Upper Control Arm Part Number: TK49-28-C10

Mazda Upper Control Arm Part Number: BBM2-28-C10

Mazda Upper Control Arm Part Number: KB7W-28-C10

Mazda Lower Control Arm Part Number: B45A-28-300C

Mazda Control Arm Part Number: GA2B-34-300A

Mazda Control Arm Part Number: GA2B-34-350A

Mazda Upper Control Arm Part Number: GBFN-28-C10

Mazda Lower Control Arm Part Number: GHP9-28-350A

Mazda Lower Control Arm Part Number: B45A-28-350C

Mazda Lower Control Arm Part Number: GBFN-28-300

Mazda Lower Control Arm Part Number: GBFN-28-350

Mazda Control Arm

Mazda Control Arm Parts and Q&A

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