T-SB-0023-18

Rev2

April 18, 2018

Rear Vibration or Noise While Braking
Service
Category

Drivetrain

Section

Drive Shaft/Propeller Shaft

Market USA

Applicability
YEAR(S)

MODEL(S)

2017 - 2018

Tacoma

ADDITIONAL INFORMATION

REVISION NOTICE
November 26, 2018 Rev2:
 The Repair Procedure section has been updated.
July 2, 2018 Rev1:
 The Introduction, Production Change Information, and Repair Procedure sections have
been updated.
Any previous printed versions of this bulletin should be discarded.

Introduction

Some 2017 – 2018 model year Tacoma vehicles with the BD20 differential (non-TRD) may exhibit
a noise or vibration from the rear of the vehicle at low speeds or while braking. This condition may
be caused by excessive clearance between the brake drum and axle drum flange. Follow the
Repair Procedure in this bulletin to address this condition.

© 2018 Toyota Motor Sales, USA

Page 1 of 6

T-SB-0023-18

Rev2

April 18, 2018

Page 2 of 6

Rear Vibration or Noise While Braking
Production Change Information

This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs
shown below.
MODEL

PLANT

DRIVETRAIN

PRODUCTION CHANGE EFFECTIVE VIN

5TFRX5GN#JX107297
5TFRZ5CN#JX058047
5TFAZ5CN#JX057112
2WD
5TFBZ5DN#JX003871
5TFEZ5CN#JX058044
TMMTX
5TFAX5GN#JX107948
5TFSX5EN#JX058941
5TFCZ5AN#JX128570
Tacoma

4WD
5TFSZ5AN#JX128576
5TFDZ5BN#JX030714
3TMAZ5CN#JM055663
2WD

3TMBZ5DN#JM012887
3TMEZ5CN#JM055673

TMMBC
3TMCZ5AN#JM130501
4WD

3TMGZ5AN#JM130495
3TMDZ5BN#JM038560

Warranty Information
OP CODE

DESCRIPTION

TIME

TC1801

R & R Axle (One Side)

2.6

Combo A

R & R Axle (Opposite Side)*

1.2

OFP

T1

T2

42311-04082

91

50

*Combo A is ONLY applicable if both sides need to be replaced.

APPLICABLE WARRANTY
 This repair is covered under the Toyota Powertrain Warranty. This warranty is in effect for
60 months or 60,000 miles, whichever occurs first, from the vehicle’s in-service date.
 Warranty application is limited to occurrence of the specified condition described in
this bulletin.

© 2018 Toyota Motor Sales, USA

T-SB-0023-18

Rev2

April 18, 2018

Page 3 of 6

Rear Vibration or Noise While Braking
Parts Information
PART NUMBER

PART NAME

QTY

42311-04082

Shaft, Rear Axle

1

90942-02081

Bolt Hub, Type B

6

90942-02049

Bolt Hub, Type A

6

42450-04010

Hub & Bearing Assy, Rear Axle (RH)

1

42460-04010

Hub & Bearing Assy, Rear Axle (LH)

1

42443-60010

Drum, Oil Deflector Gasket

1

90301-83002

Ring, O Rear, Axle Bearing Case

1

42444-35050

Brake Drum, Gasket

1

42423-60050

Rear Axle Bearing, Inner Retainer

1

90520-41019

Ring, Snap Rear Axle Shaft

1

90310-58003

Seal, Oil

1

Required Tools & Equipment
SPECIAL SERVICE TOOLS (SST)

PART NUMBER

QTY

Seal Ring Tool*

09631-12090

1

Oil Seal Puller*

09308-00010

1

Rear Axle Shaft Puller*

09521-25011-01

1

Rear Axle Shaft Puller Adapter*

09521-25021-01 or 09521-60010-01

1

Hub Bolt Remover

09650-17011

1

Bearing Replacer Set 2*

09950-60020-01

1

Handle Set*

09950-70010-01

1

*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.

REQUIRED TOOLS & MATERIAL

QUANTITY

Measuring Caliper

1

Wire Brush

1

© 2018 Toyota Motor Sales, USA

T-SB-0023-18

Rev2

April 18, 2018

Page 4 of 6

Rear Vibration or Noise While Braking
Repair Procedure

1. Confirm the condition exists.
Is a vibration or noise present from the rear of the vehicle at low speeds or while braking?
 YES — Continue to step 2.


NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.

2. Inspect the rear drum and brake assembly.
Refer to TIS, applicable model and model year Repair Manual:
 2017 / 2018 Tacoma:
Brake – Brake (rear) – “Brake: Rear Brake: Inspection”
NOTE

Refer to the Toyota 2017–2018 Tacoma Warranty and Maintenance Guide for information
on Warranty Coverage.

3. Visually inspect the rear axle flange for
corrosion/rust buildup.
Does the vehicle exhibit ANY
corrosion/rust buildup on the rear
axle flange?
 YES — Using a wire brush, remove
the corrosion/rust buildup, then
continue to step 4.
 NO — Continue to step 4.

Figure 1. Inspection Location

© 2018 Toyota Motor Sales, USA

T-SB-0023-18

Rev2

April 18, 2018

Page 5 of 6

Rear Vibration or Noise While Braking
Repair Procedure (continued)

4. Measure the diameter of the axle flange (location is illustrated in Figure 4).
A. Using a digital or dial caliper, measure the axle flange boss diameter (as shown in
Figure 2).
B. Take measurements in three locations (as shown in Figure 3) around the flange to verify
the diameter.
Figure 2.

Figure 3.

Figure 4. Side View and Location of Axle Flange

5. Is the axle flange boss diameter out of specification?
Specification: 108.000 mm – 107.946 mm (4.252 in. – 4.250 in.)



YES — Continue to step 6.



NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.

© 2018 Toyota Motor Sales, USA

T-SB-0023-18

Rev2

April 18, 2018

Page 6 of 6

Rear Vibration or Noise While Braking
Repair Procedure (continued)

6. Replace the axle.
Refer to TIS, applicable model and model year Repair Manual:
NOTE
During Repair Manual step 5A (“Install rear axle shaft”) of Reassembly, use SST 09631-12090.
Do NOT use SST 09521-25011.



2017 Tacoma:
Drivetrain – Axle – “Axle: Rear Axle Shaft: Removal / Disassembly /
Reassembly / Installation”



2018 Tacoma:
Drivetrain – Axle – “Axle: Rear Axle Shaft: Removal / Disassembly /
Reassembly / Installation”

7. Test-drive the vehicle to confirm the noise or vibration is no longer present.

© 2018 Toyota Motor Sales, USA