What size rear speakers are in a 1998 Chevy Silverado?
Typically, the rear speakers in a 1998 Chevy Silverado are 4x6 inches in extended-cab models; regular-cab trucks do not have rear speakers.
The 1998 Silverado sits at the tail end of GM's GMT400 pickup lineage and offered multiple cab configurations that affect audio setups. In regular cabs, there is no rear seating area and thus no rear-door speakers. Extended cabs, however, include rear doors with mounting space for small to mid-size rear speakers. Knowing the exact size is important for accurate replacements or upgrades.
Rear speaker sizes by cab configuration
Before listing sizes, note that these figures reflect common factory configurations for the 1998 Silverado. Variations can occur based on trim level, factory options, or aftermarket changes.
- Regular Cab: No rear speakers (rear area lacks mounting panels for audio).
- Extended Cab: Rear-door speakers, typically 4x6 inches (two-way coaxial or component setups).
These sizes represent the typical setup for most 1998 Silverado extended-cab models. If your truck has a unique package or aftermarket modifications, measurements may differ.
Notes on aftermarket replacements
When upgrading, confirm the mounting depth and connector type in addition to the size. For most 4x6 rear speakers, you’ll find standard fits, but always verify compatibility with your specific vehicle and any brackets or spacers that might be required.
- Verify your cab configuration to confirm whether rear speakers exist at all.
- Measure the mounting hole diameter or remove the panel to confirm the exact size.
- Consider the speaker type (2-way vs. coaxial) and the enclosure space behind the door panel.
With the exact size confirmed, you can shop for compatible aftermarket 4x6 rear speakers, keeping in mind wiring harness compatibility and mounting hardware.
How to verify the exact size on your truck
To ensure you buy the right replacement, follow these steps on your specific vehicle:
- Determine your cab type (Regular vs Extended) and whether rear doors actually house speakers.
- Carefully remove the rear door panel or speaker grille to access the speaker.
- Measure the mounting hole diameter and, if possible, the cone diameter to confirm size (common options include 4x6 and 5x7).
- Consult the owner's manual, service manual, or OEM replacement catalogs for the exact specification for your exact year/model.
By confirming the size directly on the vehicle, you ensure a precise fit for replacement or upgrade and avoid compatibility issues with mounting depth or connectors.
Summary
In short, a 1998 Chevy Silverado’s rear speakers are typically 4x6 inches on extended-cab models, while regular-cab versions do not have rear speakers. Always verify your specific cab configuration and measure the mounting area before purchasing replacements or upgrades, as variations can occur based on trim, option packages, or aftermarket modifications.
