1987 GMC Jimmy Speaker Sizes
The 1987 GMC Jimmy speaker size chart displays factory audio system specifications for replacement or aftermarket upgrade purposes. Information covers speaker locations within the vehicle, including dashboard and front door panel positions. Details provide specifications needed when selecting aftermarket speakers to replace factory-installed audio components in this model year.
As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.
| Location | Size | Type | Notes |
|---|---|---|---|
| Dashboard | 3.5 | Full-Range |
|
| Front Door Panel | 4x10 | Full-Range |
|
1987 GMC Jimmy Speaker Replacement Summary
2
total positions
1
easy to replace
1
high priority
0
professional only
Replacement difficulty:
Low: 1 Medium: 1 High: 0Replacement priority:
High: 1 Medium: 1 Low: 01987 GMC Jimmy 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 dashboard locations in the 1987 GMC Jimmy accommodate smaller 3.5-inch full-range speakers, which typically address mid-range and higher frequencies. These units may benefit from replacement if audio clarity in the upper spectrum has degraded over time.
- The front door panel positions accept 4x10-inch speakers, an oval format that was commonly used during this manufacturing period. This size offers more surface area than the dashboard units, potentially contributing to fuller sound reproduction across the frequency range.
- Both speaker positions are designated for full-range types rather than component systems, meaning single-unit speakers handle the complete audio spectrum at each location. This configuration simplifies replacement while maintaining the factory-style installation approach.
- Upgrading the front door speakers might yield more noticeable improvement than replacing the dashboard units, given the larger cone area and typically better acoustic environment within door panels. The 4x10-inch format in the 1987 GMC Jimmy provides options for aftermarket speakers designed to drop into these specific dimensions.
- The single DIN radio opening follows the standard head unit size from this era, measuring approximately 2 inches in height. This allows for modern aftermarket stereos to be installed, which could enhance audio quality when paired with updated speakers throughout the cabin.
- Full-range speakers at both locations suggest that no separate tweeters or crossover networks were included in the factory configuration. Replacement speakers with similar full-range design would maintain this straightforward wiring arrangement.