How to Service and Repair the Front Rack and Pinion Steering Gear on Lincoln Navigator?

Service and repair operations for the rack and pinion require positioning front wheels directly ahead followed by turning OFF the ignition. Scrutinize the air suspension switch near the rear passenger compartment jack storage as failure to do so will cause the air springs to experience accidental inflation or deflation when carrying out hoisting or jacking or towing. Position the vehicle on a hoist while placing it in the NEUTRAL gear. The hex holding feature should stop the stud from rotating when removing nuts to detach tie-rods from wheel knuckles. The second step requires the removal of bolts and oil drip shield before removing lines from the clip. When the intermediate shaft remains disconnected from the rack and pinion it should not rotate because this can harm the Clock Spring. In this case, the technician will need to remove the Clock Spring to recenter it. First, detach the intermediate shaft from the rack and pinion using the gear bolt removal and second disconnect the power steering lines with the bolts before setting them away. The electrical connector on Navigator vehicles needs disconnection by turning the actuator to expose the connector housing toward the rack and pinion input shaft. Detach the power steering lines from the rack and pinion while disposing of the nuts and verify that the removal path of the rack and pinion possesses clear access to the lines to prevent any damage. Remove the nuts, bolts, brackets along with the rack and pinion without keeping the nuts. Before tightening bolts on 4x4 vehicles ensure that all wheel end vacuum lines are positioned away from the rack and pinion mounting fasteners to avoid damage. The M14 bracket-to-rack and pinion bolts must be tightened first to prevent damage to the rack and pinion yet M12 bracket-to-crossmember bolts need to be applied second. The completion of the process involves following the removal steps in reverse order while performing system filling and purging with leak testing.

OEM Lincoln Navigator Rack And Pinion

Steering Rack And Pinion

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Lincoln Navigator Gear Assembly, Front
Part Number: YL1Z-3504-BBRM
$304.71 MSRP: $500.73
You Save: $196.02 (40%)
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Steering Gear Box, Front; Steering Gearbox
- Position: Front
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2002 Lincoln Navigator | Base | 8 Cyl 5.4 L GAS
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Lincoln Navigator Steering Gear, Front
Part Number: EU2Z-3V504-BRM
$611.75 MSRP: $981.05
You Save: $369.30 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack And Pinion Rack Gear, Front; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly
- Position: Front
- Replaces: BL1Z-3V504-ARM, STRV-89-RM, BL1Z-3504-A, STG-429
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011-2014 Lincoln Navigator | Base, L | 8 Cyl 5.4 L FLEX
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Lincoln Navigator Steering Gear
Part Number: 6L7Z-3504-AARM
$603.36 MSRP: $994.00
You Save: $390.64 (40%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Steering Gearbox; Gear Assembly
- Replaces: 6L7Z-3504-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2006 Lincoln Navigator | Base, Luxury, Ultimate | 8 Cyl 5.4 L GAS
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Lincoln Navigator Steering Gear, Front
Part Number: FL1Z-3504-D
$1281.90 MSRP: $2058.18
You Save: $776.28 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Gear Assembly - Steering; Rack And Pinion Rack Gear, Front; Steering Gearbox; Gear Assembly
- Position: Front
- Replaces: FL1Z-3504-A, FL1Z-3504-B, STE-147
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2014-2017 Lincoln Navigator | Base, L, L Reserve, L Select, Reserve, Select | 6 Cyl 3.5 L GAS, 8 Cyl 5.4 L FLEX
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Lincoln Navigator Sector Shaft, Front
Part Number: F6AZ-3575-AA
$132.49 MSRP: $183.29
You Save: $50.80 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Shaft - Steering Gear Sector; Steering Gear Sector Shaft, Front; Pitman Shaft; Shaft & Sector
- Position: Front
- Replaces: EOAZ-3575-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2002 Lincoln Navigator | Base | 8 Cyl 5.4 L GAS
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Lincoln Navigator Steering Gear
Part Number: NL1Z-3504-D
$674.40 MSRP: $986.67
You Save: $312.27 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear - Rack And Pinion Steering; Gear Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2022-2024 Lincoln Navigator | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, Reserve | 6 Cyl 3.5 L GAS
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Lincoln Navigator Steering Gear
Part Number: ML1Z-3504-A
$765.53 MSRP: $1223.64
You Save: $458.11 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear Assembly - Steering; Rack and Pinion Assembly; Steering Gearbox; Gear Assembly
- Replaced by: ML1Z-3504-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2018-2021 Lincoln Navigator | Base, Black Label, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
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Lincoln Navigator Steering Gear
Part Number: F7TZ-3504-ABRM
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Steering Gear Box; Steering Gearbox; Gear Box; Gear Assembly
- Manufacturer Note: Parts List No. 29 #SPA-KA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2002 Lincoln Navigator | Base | 8 Cyl 5.4 L GAS
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Lincoln Navigator Steering Gear, Front
Part Number: AL1Z-3504-BRM
Product Specifications
- Other Name: Remanufactured Gear Assembly - Steering; Rack And Pinion Rack Gear, Front; Steering Gearbox; Gear Assembly; Gear Assembly - Steering
- Manufacturer Note: Remanufactured
- Position: Front
- Replaces: AL1Z-3504-B, 9L1Z-3504-A, STG-414
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Lincoln Navigator | Base, L, L Luxury, L Ultimate, Luxury, Ultimate | 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS

Lincoln Navigator Rack And Pinion

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Lincoln Navigator Rack And Pinion Parts Questions & Experts Answers

Steering Gear
6L7Z-3504-AARM
Q: How to Service and Repair the Front Rack and Pinion Steering Gear on Lincoln Navigator?
A: Service and repair operations for the rack and pinion require positioning front wheels directly ahead followed by turning OFF the ignition. Scrutinize the Air Suspension switch near the rear passenger compartment jack storage as failure to do so will cause the air springs to experience accidental inflation or deflation when carrying out hoisting or jacking or towing. Position the vehicle on a hoist while placing it in the NEUTRAL gear. The hex holding feature should stop the stud from rotating when removing nuts to detach tie-rods from wheel knuckles. The second step requires the removal of bolts and oil drip shield before removing lines from the clip. When the intermediate shaft remains disconnected from the rack and pinion it should not rotate because this can harm the Clock Spring. In this case, the technician will need to remove the Clock Spring to recenter it. First, detach the intermediate shaft from the rack and pinion using the gear bolt removal and second disconnect the power steering lines with the bolts before setting them away. The electrical connector on Navigator vehicles needs disconnection by turning the actuator to expose the connector housing toward the rack and pinion input shaft. Detach the power steering lines from the rack and pinion while disposing of the nuts and verify that the removal path of the rack and pinion possesses clear access to the lines to prevent any damage. Remove the nuts, bolts, brackets along with the rack and pinion without keeping the nuts. Before tightening bolts on 4x4 vehicles ensure that all wheel end vacuum lines are positioned away from the rack and pinion mounting fasteners to avoid damage. The M14 bracket-to-rack and pinion bolts must be tightened first to prevent damage to the rack and pinion yet M12 bracket-to-crossmember bolts need to be applied second. The completion of the process involves following the removal steps in reverse order while performing system filling and purging with leak testing.