Lexus SC300 / Lexus SC400. Manual - part 826

LOWER SUSPENSION ARM

COMPONENTS

SA00B–0C

SA–40

–

SUSPENSION AND AXLE

FRONT SUSPENSION

LOWER SUSPENSION ARM REMOVAL

SA1A4–01

1. 

JACK UP VEHICLE AND REMOVE FRONT WHEEL

2. 

REMOVE ENGINE UNDER COVER

3. 

REMOVE FRONT BRAKE CALIPER

(b)  Hang up the brake caliper using wire, etc.

4.  DISCONNECT STABILIZER BAR LINK FROM LOWER

SUSPENSION ARM
Remove the nut and disconnect the link from the arm.

5. 

DISCONNECT STEERING KNUCKLE

(a)  Remove the clip and nut.
(b)  Using SST, disconnect the steering knuckle from the lower

suspension arm.
SST 09628–62011

6. 

REMOVE LOWER SUSPENSION ARM

(a)  Remove the bolt and nut and disconnect the lower

suspension arm from the shock absorber.

–

SUSPENSION AND AXLE

FRONT SUSPENSION

SA–41

(b)  Before loosening the adjusting cam, place matchmarks on

the front and rear adjusting cams and body.

(c)  Remove the nuts and adjusting cams and remove the lower

suspension arm.

7. 

REMOVE SHOCK ABSORBER BRACKET FROM LOWER
SUSPENSION ARM
Remove the 2 bolts and the bracket from the arm.

LOWER BALL JOINT INSPECTION

SA0RW–04

INSPECT BALL JOINT FOR ROTATION CONDITION

(a) As 

shown, flip the ball joint stud back and forth 5 times before

installing the nut.

(b)  Using torque wrench, turn the nut continuously one turn

every 2–4 seconds and take the torque reading on the 5th
turn.

Torque (turning):

1.0–3.4 N

⋅

m (10–35 kgf

⋅

cm, 9–30 in.

⋅

lbf)

If not within specification, replace the lower suspension arm.

SA–42

–

SUSPENSION AND AXLE

FRONT SUSPENSION

LOWER SUSPENSION ARM
INSTALLATION

SA1A5–01

1.  INSTALL SHOCK ABSORBER BRACKET TO LOWER

SUSPENSION ARM
Install the bracket to the arm with the 2 bolts.

Torque: 52 N

⋅

m (530 kgf

⋅

cm, 38 ft

⋅

lbf)

2. 

INSTALL LOWER SUSPENSION ARM

(a)  Install the lower suspension arm to the body and temporarily

install the adjusting cams and nut.

(b)  Connect the lower suspension arm to the steering knuckle.

Torque: 125 N

⋅

m (1,270 kgf

⋅

cm, 92 ft

⋅

lbf)

(c)  Install a new clip.

(d)  Connect the shock absorber to the lower suspension arm

with the bolt and nut.

Torque: 143 N

⋅

m (1,460 kgf

⋅

cm, 106 ft

⋅

lbf)

2. 

CONNECT STABILIZER BAR LINK

(a)  Connect the stabilizer bar link to the lower suspension arm

with the nut.

Torque: 74 N

⋅

m (750 kgf

⋅

cm, 54 ft

⋅

lbf)

–

SUSPENSION AND AXLE

FRONT SUSPENSION

SA–43