1989 Ford F-350 Speaker Sizes
The 1989 Ford F-350 speaker size chart provides factory specifications for audio component replacement and aftermarket system upgrade. Information covers speaker locations in front and rear door panels, detailing sizes and configurations for each position. Specifications assist with identifying compatible aftermarket speakers that match factory dimensions and mounting requirements.
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| 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.