Years ago, replacing a bulb was pretty simple. Owners of 2005-2009 Mustangs will find this task is a bit more involved than in the days of old. In order to replace a taillight, you will have to remove some trim in your trunk, as well as a few retaining screws. The entire taillight assembly will then need to be carefully removed from its seating so you can gain access to the bulb sockets in the rear.
What follows is a step-by-step replacement of a brake light on a 2008 Ford Mustang.
You Need
- Small Flathead Screwdriver
- 1/4” Drive 7/16 or 11mm Socket and Ratchet
- Sylvania 4057 or 4057LL Replacement Bulb


