What size are the rear speakers in a 2006 Ford f350?
The rear door speakers on a 2006 Ford F-350 are typically 6x8 inches in size. This is the most common configuration for Crew Cab models; exact dimensions can vary by cab type and trim. If you’re upgrading or replacing, verify the size on your specific vehicle before purchasing.
Cab configurations and typical sizes
Because Ford offered both Crew Cab and Super Cab configurations in 2006 F-350s, the rear speaker dimensions can vary. The following outlines the most common scenarios and how to verify.
Crew Cab
In Crew Cab models, the rear doors typically accommodate 6x8 inch speakers. This is the standard size used by many manufacturers in similar door panels of Ford trucks from that era.
Super Cab
In Super Cab (the extended two-door variant), some models used smaller rear speakers in the rear doors or panels, commonly around 4x6 inches, but this isn’t universal. Always confirm for your exact truck.
How to verify the exact size in your truck
To ensure you buy the correct replacement, verify the size in your specific vehicle. The steps below guide you through a quick check.
- Inspect the speaker size printed on the existing speaker magnet or frame (if still installed).
- Remove the rear door panel to measure the mounting hole diameter and depth—note that the standard size is around 6x8 or 4x6, but measure accurately.
- Consult the owner's manual, service manual, or Ford parts diagrams for your VIN; dealers can pull the exact spec.
- Use an online fit guide (e.g., Crutchfield or Sonic Electronix) by entering year, make, model, and cab configuration to confirm compatibility.
With the exact size in hand, you can proceed to select compatible aftermarket replacements that fit the mounting depth and grill clearance.
Summary
For a 2006 Ford F-350, rear door speaker size is most commonly 6x8 inches in Crew Cab configurations. Because cab style and trim can affect fit, verify the exact size on your vehicle before purchasing replacements. If in doubt, a quick door-panel measurement or dealer reference will ensure you choose the right size.
