Lexus SC300 / Lexus SC400. Manual - part 812

REAR UPPER ARM REMOVAL

SA1A6–01

1. 

JACK UP VEHICLE AND REAR WHEEL

2. 

REMOVE REAR DRIVE SHAFT
(See page 

SA–66

)

3. 

REMOVE REAR BRAKE CALIPER

(a)  Remove the 2 bolts and brake caliper from the rear axle hub.

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

4. 

REMOVE ABS WIRE HARNESS CLAMP
Remove the 2 bolts and ABS wire harness clamp.

5. 

REMOVE UPPER ARM

(a)  Remove the nut.

(b)  Using SST, disconnect the upper arm to the axle carrier.

SST 09628–62011

NOTICE: Be careful not to damage the dust cover.

SA–114

–

SUSPENSION AND AXLE

REAR SUSPENSION

(c)  Remove the bolts and nuts and the upper arm.

UPPER SUSPENSION ARM BALL JOINT
INSPECTION

SA0SJ–04

INSPECT BALL JOINT FOR ROTATION CONDITION

(a)  Flip the ball joint stud back and forth 5 times, as shown in the

illustration, 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 with in specification, replace the upper suspension arm.

UPPER ARM INSTALLATION

SA1A7–01

HINT: If replace the nut, assemble the nut and E–ring to the
washer with lock protrusion before install.

1. 

INSTALL UPPER ARM

(a)  Install the upper arm to the body with the bolts and nuts.

HINT: Install the tip of the nut lock facing down.

Torque: 164 N

⋅

m (1,670 kgf

⋅

cm, 121 ft

⋅

lbf)

–

SUSPENSION AND AXLE

REAR SUSPENSION

SA–115

(b)  Connect the upper arm to the axle carrier with a new nut.

Torque: 109 N

⋅

m (1,100 kgf

⋅

cm, 80 ft

⋅

lbf)

2. 

INSTALL REAR DRIVE SHAFT
(See page 

SA–66

)

3. 

INSTALL ABS WIRE HARNESS CLAMP
Connect the ABS wire harness clamp to the upper arm with
the two bolts.

4. INSTALL 

BRAKE 

CALIPER

Install 

the brake caliper to the rear axle carrer with the 2 bolts.

Torque: 104 N

⋅

m (1,065 kgf

⋅

cm, 77 ft

⋅

lbf)

5. 

INSTALL REAR WHEEL AND LOWER VEHICLE

SA–116

–

SUSPENSION AND AXLE

REAR SUSPENSION

LOWER SUSPENSION ARM AND
STRUT ROD

COMPONENTS

SA0SL–03

–

SUSPENSION AND AXLE

REAR SUSPENSION

SA–117