1987 Ford F-350 Speaker Sizes

The 1987 Ford F-350 factory audio system features specific locations for sound reproduction. The front door panel accommodates a 6.5 inch speaker size, while the rear door panel supports 6x9 inch units. Component types for system replacement and upgrade consist of midbass and full-range options.

Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.

Speaker Details by Location
Location Size Type Notes
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Door Panel 6x9 Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

1987 Ford F-350 Speaker Replacement Summary

2 total positions
2 easy to replace
1 high priority
0 professional only

Replacement difficulty:

Low: 2 Medium: 0 High: 0

Replacement priority:

High: 1 Medium: 1 Low: 0

1987 Ford F-350 Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN 7"×2" 180×50 Standard size for basic car radios with small display or no display
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The front door panels in the 1987 Ford F-350 typically accommodate 6.5-inch speakers, which can be replaced with either midbass drivers or full-range units depending on the audio system configuration. Midbass speakers tend to handle mid-to-low frequencies with greater precision, while full-range options provide broader frequency coverage through a single driver assembly.
  • Rear door panel locations accept 6x9-inch full-range speakers, which are generally designed to reproduce a wider frequency spectrum without requiring separate tweeters or crossovers. This oval format often provides increased cone area compared to round speakers of similar mounting depth, potentially offering greater output capability in the lower frequency ranges.
  • The single DIN radio opening suggests that aftermarket head units with standard chassis dimensions could be installed without significant dashboard modifications. This standardized mounting configuration was prevalent in vehicles manufactured during the late 1980s and early 1990s.
  • Replacement of the factory speakers in the 1987 Ford F-350 may yield noticeable improvements in clarity and dynamic range, particularly if the original components have experienced degradation from age or environmental exposure. The specified mounting sizes correspond to common aftermarket dimensions, which tends to provide multiple options across various performance categories.
  • Front door speaker locations often receive priority during upgrades due to their proximity to occupants and their contribution to stereo imaging. The 6.5-inch format allows for sufficient cone excursion to reproduce midbass frequencies that form the foundation of most musical content.
  • The combination of 6.5-inch front and 6x9-inch rear speakers represents a conventional configuration that balances frequency coverage with available mounting space. Installation of components with appropriate sensitivity ratings could enhance overall system efficiency, particularly when powered by the limited output of factory or basic aftermarket amplifiers.