Installation Instructions for Ford LTD, Crown Victoria, Lincoln Town Car, Town Coupe, Mark VI, Mercury Marquis, Grand Marquis, and Mercury Marauder

Part Numbers:

• 44728
• 41116
• 87408

Wiring Access Location:

• PC3, PC4

Tools Required:

• Ratchet
• Torque Wrench
• Drill with 1/2" Drill Bit
• Exhaust Removal Pliers
• Sockets: 3/4", 13mm

Step-by-Step Instructions:

1. Prepare Frame Rails:

   • Examine the bottom of the frame rails and remove any weld spatter to ensure the hitch sits flat.
   • Remove all but a thin film of undercoating from the attaching surfaces.

2. Fishwire Rearward Bolts:

   • Feed the 1/2" carriage bolts and 1/4" x 1-1/2" x 3" spacer blocks through the body mount access holes and into the existing slots in the frame rails.

3. Position Hitch:

   • Raise the hitch into position over the bolts and loosely install the conical washers (teeth side facing hitch) and hex nuts.
   • Ensure both sides of the hitch are positioned identically within the slots (e.g., forward, centered, or rearward).

4. Relocate Exhaust Hanger (2003 and Later Lincoln Town Car):

   • Unbolt the passenger-side exhaust hanger bracket from the vehicle frame.
   • Remove the rubber hanger from both the hanger bracket and the tailpipe bracket.
   • Rotate the rubber hanger and reattach it to the hanger bracket. Do not reattach it to the tailpipe bracket at this time. Discard the existing hanger bolt.

5. Drill Frame Holes:

   • Using the hitch as a template, drill a rearward hole into the bottom of each frame rail with a 1/2" drill bit.

6. Install Rearward Fasteners:

   • Drop a 1/2" bolt with a 1/4" x 1-1/2" x 2" spacer block down through the access hole at the end of each frame rail and into the drilled holes.
   • Hold the spacer block in place with one hand while guiding the bolt through the hole.

7. Secure Hitch:

   • Tighten all 1/2"-13 GR5 fasteners to 75 lb-ft (102 N*m).
   • Tighten all M8 CL8.8 fasteners to 20 lb-ft (27 N*m).

8. Reattach Exhaust Hanger (2003 and Later Lincoln Town Car):

   • Reattach the passenger-side exhaust hanger bracket as shown in Figure 3.

Torque Specifications:

• 1/2"-13 GR5 bolts: 75 lb-ft (102 N*m)
• M8 CL8.8 bolts: 20 lb-ft (27 N*m)

Hardware List:

• (4) Carriage Bolts, 1/2"-13 x 1.75" GR5
• (4) Spacer Blocks, 1/4" x 1-1/2" x 3"
• (2) Spacer Blocks, 1/4" x 1-1/2" x 2"
• (2) Conical Washers, 1/2"
• (4) Hex Nuts, 1/2"-13
• (1) Hex Bolt, M8 x

Installation Instructions for Trailer Light Wiring Kit

Part Number:

• 20252

Tools Required:

• Hot Air Gun or Appropriate Heat Source
• Wire Crimpers
• Drill (3/32” Drill Bit)
• Phillips Head Screwdriver
• Circuit Tester

Step-by-Step Instructions:

Step 1: Locate the Taillight Wiring Harness

1. Access the vehicle's taillight wiring harness.
2. Using the provided instructions, identify the appropriate wires for connection:
   • Green Wire: Right Turn & Stop
   • Yellow Wire: Left Turn & Stop
   • Brown Wire: Taillights
   • White Wire: Ground

Step 2: Make the Electrical Connections

1. Match the color-coded wires from the wiring kit to the corresponding vehicle wires.

   • Use a circuit tester to verify each wire's function before connecting.
   • CAUTION: Test one wire at a time to prevent damage to electronic components.

2. Connect the wires using the provided insulated butt connectors:

   • Strip the ends of each wire and seat them properly in the connector.
   • Use a crimping tool designed for insulated splices to secure the connections.

3. Heat the connectors:

   • Apply heat directly to the center of each splice using a hot air gun.
   • Work from the center outward until the tubing recovers and adhesive flows.
   • Allow the connections to cool before inspecting for integrity.

Step 3: Ground the System

1. Locate a grounding point near the wiring harness, such as the vehicle frame or cross member.
   • Do not drill into the vehicle floor or bed.
2. Clean the area to remove dirt, rust, or undercoating.
3. Drill a 3/32" hole at the grounding point and secure the white wire using the provided eyelet and screw.

Step 4: Verify the Installation

1. Test all connections using a circuit tester or trailer:
   • Verify the functionality of taillights, turn signals, and brake lights.
   • Ensure all connections are complete and secure.
2. If issues are identified, double-check the wiring and connections for errors.

Step 5: Store the 4-Flat Connector

• Store the 4-flat connector in the rear cargo area when not in use to protect it from damage and environmental exposure.

Warnings and Notes:

• WARNING: Overloading a circuit can cause fires. Do not exceed the following limits:
  • Stop/Turn Lights: 7.5 amps (1 per side)
  • Tail Lights: 7.5 amps
• WARNING: Always verify what is behind any surface before drilling to avoid vehicle damage or injury.
• NOTE: Trailer lighting that requires more than 7.5 amps per circuit must use a Trailer Light Power Converter.
• NOTE: If your trailer requires a plug other than the 4-flat, consult your dealer for optional 6-way or 7-way adapters.

Maintenance:

• Inspect the wiring harness periodically for damage, corrosion, or loose connections.
• Reapply heat to connectors if the adhesive seal weakens.

Specifications:

• Maximum Load:
  • Stop/Turn Lights: 7.5 amps (1 per side)
  • Tail Lights: 7.5 amps
• Recommended Grounding Hole Size: 3/32 inches