Manual Transmission – Inability To Shift Into Third And Fourth Gear – 2018 Ford Mustang

NHTSA ID Number: 10230766

Manufacturer Communication Number: TSB 22-2372

Summary

Some 2018 MustangeBay logo vehicles equipped with a 5.0L engine and a manual transmission may exhibit an inability to engage third and fourth gear. This may be due to a broken 3-4 shift fork. To correct the condition, follow the Service Procedure to replace the 3rd/4th shift fork, the 1st/2nd shift fork, the countershaft 3rd gear, and the 3rd/4th gear synchronizer hub and sleeve.

 


This bulletin supersedes 18-2351.

Model:

FordeBay logo

2018 MustangeBay logo

Engine: 5.0L

 

Summary

This article supersedes TSB 18-2351 to update the Parts List.

Issue: Some 2018 MustangeBay logo vehicles equipped with a 5.0L engine and an MT82 manual transmission may exhibit an inability to engage 3rd and 4th gear. This may be due to a broken 3-4 shift fork. To correct the condition, follow the Service Procedure to replace the 3rd/4th shift fork, the 1st/2nd shift fork, the countershaft 3rd gear, and the 3rd/4th gear synchronizer hub and sleeve.

Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following conditions:

 

Parts

Service Part NumberQuantityDescriptionUnit of IssuePiece Quantity
JR3Z-7048-A1Input Shaft Seal11
JR3Z-7230-B13rd/4th Shift Fork11
JR3Z-7052-A1Output Shaft Seal11
BR3Z-7A010-A1Countershaft Bolt Cover11
JR3Z-7230-F11st/2nd Shift Fork11
JR3Z-7101-A1Countershaft 3rd Gear11
JR3Z-7124-D13rd/4th Gear Synchronizer Hub And Sleeve11
BR3Z-5B266-A
Ford Gasket
  • Geniune OEM part

Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API


 

1Gasket11
FR3Z-4B496-BeBay logo3Bolt And Washer, M10 x 1.5 MM13
W719298-S439eBay logo1Bolt M12 X 56 MM43
W717822-S439eBay logo1Bolt M10 x 19 MM42
W705443-S900
Ford Motor Co. Genuine Exhaust Nut - W705443S900
  • Item Package Dimension: 4.13L x 2.71W x 0.31H inches
  • Item Package Weight - 0.0330693393 Pounds
  • Item Package Quantity - 1
  • Product Type - NUTS

Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API


 

1Nut M10 x 1.5MM42
TA-25-BeBay logoAs NeededMotorcraft® Threadlock and Sealer
TA-16
Motorcraft #ta16 Adhesive (ta16)
  • Flexible, anaerobic gasketing material (red)
  • Use on rigid machined flanges with less than 0.010" gap
  • Seals upon assembly, no waiting required
  • Adheres well to aluminum, iron, steel and magnesium
  • May also be used on automatic/manual transaxle cases, gear shift housings, dipstick tubes, water pumps and engine flanges

Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API


 

As NeededMotorcraft® Gasket Maker
TA-26
Motorcraft #ta26 Adhesive (ta26)
  • Motorcraft #ta26 Adhesive (ta26)

Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API


 

As NeededMotorcraft® Threadlock 262
XG-11eBay logoAs NeededMotorcraft® High Temperature 4×4 Front Axle and Wheel Bearing Grease
XL-2
Genuine Ford Accessories (XL-2) High Temperature Nickel Anti-Seize Lubricant - 8 oz.
  • High Quality Auto Part
  • Prevents seizing and galling of metal parts
  • Guards against rust and corrosion caused by chemicals and weathering
  • For use when replacing oxygen sensors
  • Use according to owner guide recommendations

Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API


 

As NeededMotorcraft® High Temperature Nickel Anti-Seize Lubricant
XL-1
Genuine Ford Fluid XL-1 Penetrating and Lock Lubricant - 12 oz. Aerosol
  • Displaces moisture
  • Helps free rusty/seized parts
  • Helps protect metal parts against corrosion
  • Formulated for automotive use
  • Use according to owner guide recommendations

Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API


 

As NeededMotorcraft® Penetrating and Lock Lubricant
XL-18As NeededMotorcraft® MT82 Transmission Additive XL-18a
XT-11-QDC
Ford Genuine Ford Fluid XT-11-QDC Dual Clutch Transmission Fluid - 1 Quart
  • Specifically formulated for use in the DPS6 power shift twin dry-clutch transmission
  • Manufactured with synthetic base oils and performance additives providing improved shifting at all ambient temperatures
  • Use only in transmissions requiring a fluid meeting WSS-M2C200-D2
  • Also used to operate the transmission's shift mechanisms
  • Protects against wear and corrosion, while low viscosity improves fuel economy

Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API


 

As NeededMotorcraft® Dual Clutch Transmission Fluid

Quantity refers to the amount of the service part number required to repair the vehicle.

Unit of Issue refers to the number of individual pieces included in a service part number package.

Piece Quantity refers to the total number of individual pieces required to repair the vehicle.

As Needed indicates the amount of the part may vary and/or is not a whole number. Parts can be billed out as non-whole numbers, including less than 1.

 

Service Procedure

1. Does the shifter move into the 3rd and 4th gear positions when attempting to engage these gears but the gears do not actually engage in the transmission?

(1). Yes – proceed to Step 2.

(2). No – this article does not apply. Refer to Workshop Manual (WSM), Section 308-03A for normal diagnostics.

2. Remove the transmission from the vehicle. Refer to WSM, Section 308-03A.

3. Disassemble the transmission. Replace the 3rd/4th shift fork, the 1st/2nd shift fork, the countershaft 3rd gear, and the 3rd/4th gear synchronizer hub and sleeve. Refer to WSM, Section 308-03A.

4. Reassemble the transmission and reinstall it into the vehicle. Refer to WSM, Section 308-03A.

 


1 Affected Product

Vehicle

MAKEMODELYEAR
FORDeBay logoMUSTANGeBay logo2018

 


1 Associated Document

Manufacturer Communications

22-2372
04 January 2023

https://www.nhtsa.gov/recalls?nhtsaId=10230766

MC-10230766-0001.pdf 142.569KB

 


NHTSA ID Number: 10153914

Manufacturer Communication Number: TSB 18-2351

Summary

Some 2018 MustangeBay logo vehicles equipped with a 5.0L engine and a manual transmission may exhibit an inability to engage third and fourth gear. This may be due to a broken 3-4 shift fork. Follow the Service Procedure steps to correct the condition.

1 Associated Document

Manufacturer Communications

18-2351
07 January 2019

https://www.nhtsa.gov/recalls?nhtsaId=10153914

MC-10153914-9999.pdf 106.884KB

 


NHTSA ID Number: 10144179

Manufacturer Communication Number: tsb18-2175

Summary

Some 2018 MustangeBay logo vehicles equipped with a 5.0L engine and a manual transmission may exhibit an inability to engage third and fourth gear. This may be due to a broken 3-4 shift fork. Follow the Service Procedure steps to correct the condition.

1 Associated Document

Manufacturer Communications

18-2175
29 June 2018

https://www.nhtsa.gov/recalls?nhtsaId=10144179

MC-10144179-9999.pdf 106.496KB

 


 

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Last update on 2026-06-04 / Affiliate links / Images from Amazon Product Advertising API


 

 


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