Installing Reverse Glow Gauges in 99-04 Ford Mustangs

The white face reverse glow gauges are a popular item for 94-09 Mustangs. Follow along as we install a set courtesy of Stack Racing.

Tools Required:

  • T15 Torx Head and Driver
  • Drill and metal bit
  • Soldering gun or Quick Splice Connectors
  • Thin Allen Wrench or Paper Clip

First you’ll want to disconnect your battery by removing the negative terminal first and then the positive side. It is a good idea to disconnect your battery whenever you are working on your Mustang’s electronics. Wait 15 minutes after disconnecting your battery before you being the install.

Remove the headlight knob to the left of the steering wheel. Pull the knob out in the “lights on” position and rotate the knob counter-clockwise until the slit is facing towards the driver’s side door. Inside the slit is a metal clip. Using a thin object (allen wrench works great), release the clip by gently lifting the clip outward towards the driver’s side door. While you do this, pull firmly on the headlight knob. This should release the knob and it should slide right off.

Now, remove the two screws holding the dash panel to the dash with the T15 torx bit and driver. Once removed, the entire panel can be taken out by firmly pulling straight out. This will release the clips and pins which also secure it in place. The torx screws are shown circled in red below.

We will be removing the gauge cluster from the dash. Begin by removing the (4) T15 torx screws which secure the cluster to the dash. Once you remove the screws, gently pull the cluster away but do not completely remove. There are two electrical plugs that need to be disconnected before you can remove the gauge cluster from the vehicle. The torx screws which need to be removed are circled in red below.

The two connectors which need to be unplugged are shown circled in red below.

Using the T15 torx bit and driver, remove the (8) Torx screws holding the clear lens onto the gauge cluster. Once all are removed, gently remove the clear lens.

Now we will begin installing the new white face gauges. The great thing about our design is you do not need to remove your needles for installation! Start with the fuel and temperature gauge section and slip the insert over the existing gauges as shown below. You can then move onto the other sections. Take your time and be careful with the needles so that they are not accidently broken.

Once the new white face gauges are in place, reassemble the gauge cluster unit by reinstalling the clear lens and replacing the (8) torx screws which held it on. Finally, the hard part is over! Next, we’ll be wiring up your new white face gauges.

We will be wiring the gauges to the headlight control unit. First, remove the headlight control unit by removing the two metric hex bolts shown circled below. Once removed, gently slide the unit out. The harness attached to the headlight control unit is shown below. You want to connect the red (positive) wire coming from the invertor included with your new gauges to the large gray wire that is located on the headlight control unit harness. Attach the black wire coming from the invertor to any good ground source. You can choose to drill a small hole in the chassis and attach the ground wire with an O ring terminal or you can tap into the black wire located on the headlight control unit harness (simplest way).

We are almost done at this point. Attach the clips coming from your new gauges to the clips on the new gauge harness. There maybe some extras but its not a big deal. This is a good time to test your electrical connections. You will need to plug the harnesses going into the gauge cluster back in and then reattach the positive and negative connections on your battery. Turn your lights on and hopefully your new white face gauges come to life!

Once everything checks out, you’ll finish the install by reversing the initial steps gone over at the beginning of this guide. Thats all there is to it! In under an hour, you can totally transform the cockpit of your Mustang.

Write up courtesy of StackRacing. You can purchase your white face reverse glow gauges at StangMods.com. The direct link to each specific model gauge is below:

1999-2004 Mustang GT Gauges

1999-2004 Mustang V6 Gauges

1996-1998 Mustang GT Gauges

1994-1995 Mustang GT Gauges

1994-1998 Mustang V6 Gauges

Author: stangmods

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1 comment on “Installing Reverse Glow Gauges in 99-04 Ford Mustangs

  1. Jonathan
    / Reply

    I don’t see the pictures for this post, is it possible to get direct links to them? I’m going to attempt to install mine in a few days and need all the help I can get! Thanks!

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