1987 Ford Bronco II Speaker Sizes
The 1987 Ford Bronco II factory audio system features a dashboard that accommodates 4 inch speakers, and a rear door panel supporting 6x8 inch units. Selecting a suitable replacement and upgrade involves choosing among midrange or full-range compatible speaker types.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 4 | Midrange |
|
| Rear Door Panel | 6x8 | Full-Range |
|
1987 Ford Bronco II Speaker Replacement Summary
2
total positions
1
easy to replace
0
high priority
0
professional only
Replacement difficulty:
Low: 1 Medium: 1 High: 0Replacement priority:
High: 0 Medium: 2 Low: 01987 Ford Bronco II 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 1987 Ford Bronco II front soundstage relies on 4-inch midrange drivers mounted in the dashboard, which suggests these speakers handle primarily vocal and mid-frequency content rather than full-spectrum audio reproduction.
- Dashboard speakers in this configuration typically lack dedicated tweeters and woofers, meaning the factory setup may produce limited high-frequency detail and bass response from the front positions.
- Rear door panels accommodate 6x8-inch full-range speakers, which likely serve as the primary source for lower frequencies and overall sound coverage within the cabin.
- The full-range designation for rear speakers indicates they incorporate woofer and tweeter elements within a single frame, potentially providing broader frequency response than the front midrange units.
- Upgrading the rear 6x8-inch positions could yield more noticeable improvements in overall sound quality compared to replacing the smaller dashboard midrange speakers, given their full-range capability and larger cone area.
- The single DIN radio opening suggests limited space for aftermarket head units with extensive equalization controls, though standard-sized receivers would install without modification.
- This speaker arrangement places most bass and treble reproduction responsibility on the rear door locations, while front dashboard speakers contribute primarily to midrange clarity and stereo imaging.
- Component speaker systems designed for 6x8-inch openings might offer separate tweeters that could be surface-mounted to improve high-frequency dispersion from the rear positions.
- The 4-inch front speaker diameter limits available aftermarket options compared to more common sizes like 3.5-inch or 5.25-inch, though midrange-specific replacements remain available from various manufacturers.