Important!

This replacement procedure can be used for:
TOYOTA LAND CRUISER (KDJ12_, GRJ12_) 3.0 D-4D (KDJ120, KDJ125), TOYOTA LAND CRUISER (KDJ12_, GRJ12_) 3.0 D-4D (KDJ120), TOYOTA LAND CRUISER (KDJ12_, GRJ12_) 4.0 (GRJ120, GRJ125, GRJ121), TOYOTA LAND CRUISER (KDJ12_, GRJ12_) 3.0 D (KZJ120) … View more

The steps may slightly vary depending on the car design.

How to change front suspension arm on TOYOTA LAND CRUISER PRADO 3 (J120) [TUTORIAL AUTODOC]

All the parts you need to replace – Control Arm for LAND CRUISER (KDJ12_, GRJ12_) and other TOYOTA models

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Replacement: front upper arm – Toyota Prado J120. Tools you need:

                      Wire brush
                    
                      WD-40 spray
                    
                      Brake cleaner 
                    
                      Copper grease 
                    
                      Combination spanner #10
                    
                      Combination spanner #19
                    
                      Drive socket # 10 
                    
                      Drive socket # 12 
                    
                      Drive socket # 19 
                    
                      Wheel impact socket #21
                    
                      Ratchet wrench
                    
                      Torque wrench
                    
                      Crow bar
                    
                      Flat Screwdriver
                    
                      Round-nose pliers
                    
                      Ball joint puller
                    
                      Fender cover
                    
                      Hydraulic transmission jack
                    
                      Wheel chock

Buy tools

Replacement: front upper arm – Toyota Prado J120. AUTODOC recommends:

The replacement procedure is identical for the right and left upper control arms.
All work should be done with the engine stopped.

Replacement: front upper arm – Toyota Prado J120. Take the following steps:

Step 1

Open the hood.
Step 2

Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.

Step 3

Unscrew the fasteners of the car battery terminals. Use a combination spanner #10.
Step 4

Remove the battery terminals.
Step 5

Unscrew the battery hold down clamp. Use a drive socket #10. Use a ratchet wrench.
Step 6

Remove the battery hold down clamp.
Step 7

Remove the battery.
Step 8

Secure the wheels with chocks.
Step 9

Loosen the wheel mounting bolts. Use wheel impact socket #21.
Step 10

Raise the front of the car and secure on supports.
Step 11

Unscrew the wheel bolts.

AUTODOC recommends:
Important! Hold the wheel while unscrewing the fastening bolts. Toyota Prado J120
Step 12

Remove the wheel.
Step 13

Clean all joints of the arm. Use a wire brush. Use WD-40 spray.
Step 14

Unscrew the ABS cable holder. Use a drive socket #12. Use a ratchet wrench.
Step 15

Remove the mounting bracket of the ABS sensor wiring from the upper arm.
Step 16

Unscrew the fastener connecting the trailing arm to the car body. Use a combination spanner #19.
Step 17

Remove the cotter pin.

Step 18

Unscrew the fasteners of the ball joint. Use a combination spanner #19.
Step 19

Disconnect the ball joint from the steering knuckle. Use a ball joint puller.
Step 20

Prop up the steering knuckle. Use a hydraulic transmission jack.
Step 21

Detach the upper control arm from the steering knuckle. Use a crowbar.

Replacement: front upper arm – Toyota Prado J120. AUTODOC experts recommend:
Make sure that the steering knuckle is supported.
Step 22

Remove the fastening bolt.
Step 23

Remove the arm.
Step 24

Install a new arm.

Replacement: front upper arm – Toyota Prado J120. Professionals recommend:
During the installation process, use only new bolts and nuts.Do not damage the ball joint cover.
Step 25

Install the fastening bolt.
Step 26

Attach the upper control arm to the steering knuckle.
Step 27

Remove the support from under the steering knuckle.

AUTODOC recommends:
Replacement: front upper arm – Toyota Prado J120. Lower the transmission jack smoothly, without jerks, to avoid damaging components and mechanisms.
Step 28

Support the arm. Use a hydraulic transmission jack.
Step 29

Screw the fastener connecting the ball joint to the steering knuckle. Use a combination spanner #19.
Step 30

Tighten the fastener connecting the trailing arm to the car body. Use a combination spanner #19. Use a torque wrench. Tighten it to 115 Nm torque.
Step 31

Tighten the ball joint fastener. Use a drive socket #19. Use a torque wrench. Tighten it to 110 Nm torque.
Step 32

Remove the support from under the arm.

AUTODOC recommends:
Toyota Prado J120 – Do not lower the transmission jack sharply to avoid damaging components and mechanisms of the car.
Step 33

Install the mounting bracket of the ABS sensor wiring onto the upper arm.
Step 34

Tighten the ABS cable holder. Use a drive socket #12. Use a ratchet wrench.
Step 35

Treat all joints of the arm. Use copper grease.
Step 36

Install the cotter pin. Use round-nose pliers. Use a flat screwdriver.
Step 37

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 38

Clean the brake disk surface. Use a brake cleaner.

Replacement: front upper arm – Toyota Prado J120. Tip from AUTODOC:
After applying the spray, wait a few minutes.
Step 39

Install the wheel.

AUTODOC recommends:
Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Toyota Prado J120
Step 40

Screw in the wheel bolts. Use wheel impact socket #21.
Step 41

Lower the car and working in a cross order, tighten the wheel bolts. Use a torque wrench. Tighten it to 112 nm torque.
Step 42

Install the battery.
Step 43

Install the battery hold down clamp.
Step 44

Screw in the battery hold down clamp. Use a drive socket #10. Use a ratchet wrench.
Step 45

Attach the terminals to the battery.

Replacement: front upper arm – Toyota Prado J120. Tip:
Be careful! Do not mix up the positive and the negative terminals of the car battery.
Step 46

Screw in the fasteners of the battery terminals. Use a combination spanner #10.
Step 47

Remove the fender protection cover.

Step 48

Close the hood.

Step 49

Remove the jacks and chocks.

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