1989 Ford F-350 Speaker Sizes
The 1989 Ford F-350 factory audio system features specific mounting locations within the cabin. Specifically, the front door panel accommodates a 6.5 inch speaker size, while the rear door panel accepts 6x9 inch units. For an audio replacement upgrade, compatible speaker types include midbass and full-range units.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 6x9 | Full-Range |
|
1989 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: 0Replacement priority:
High: 1 Medium: 1 Low: 01989 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 1989 Ford F-350 features two distinct speaker locations with different size requirements, suggesting that replacement planning should account for both circular and oval speaker formats when upgrading the audio system.
- Front door panels accommodate 6.5-inch speakers that can accept either midbass or full-range driver types, offering flexibility in component selection based on whether a separate tweeter installation is planned or if a full-range solution is preferred.
- Rear door panels utilize 6x9-inch oval speakers limited to full-range types, which typically provide broader frequency response in a single unit compared to dedicated midbass drivers.
- The size difference between front and rear locations indicates that the factory audio design likely relied on the larger rear speakers to handle a wider frequency spectrum while front speakers could be configured for more focused midrange reproduction.
- Aftermarket full-range speakers in the front position would eliminate the need for separate tweeters, potentially simplifying installation while still providing high-frequency output that midbass-only drivers cannot reproduce.
- The 6x9-inch rear speaker format generally offers greater cone area than the 6.5-inch front speakers, which may contribute to increased output in the lower midrange frequencies when comparing speakers of similar quality.
- Single DIN radio compatibility allows for head unit upgrades without dashboard modification, which could provide power and signal quality improvements that complement speaker replacements.