1986 Chevrolet Blazer Speaker Sizes

The 1986 Chevrolet Blazer speaker size chart provides factory speaker specifications and locations for replacement or aftermarket audio system upgrades. Information includes dashboard and rear door panel speaker positions. Data covers factory audio configurations to assist with identifying compatible aftermarket speakers for system enhancement or restoration.

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Speaker Details by Location
Location Size Type Notes
Dashboard 3.5 Full-Range
  • Requires panel disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Door Panel 4x10 Full-Range
  • Standard installation
  • Medium replacement priority
  • Replacement difficulty: low

1986 Chevrolet Blazer Speaker Replacement Summary

2 total positions
1 easy to replace
0 high priority
0 professional only

Replacement difficulty:

Low: 1 Medium: 1 High: 0

Replacement priority:

High: 0 Medium: 2 Low: 0

Additional Notes

  • The dashboard location in the 1986 Chevrolet Blazer uses a 3.5 inch full-range speaker, which suggests it may be the higher-priority replacement position given its placement in the primary listening plane relative to the occupants.
  • A full-range driver at the dashboard position would likely handle the entire audible frequency spectrum on its own, which could mean there is no separate provision for a dedicated tweeter or woofer in that location.
  • The rear door panel accommodates a 4x10 inch oval full-range speaker, a format that tends to offer a larger cone surface area than a standard round driver of comparable sizing, which may contribute to somewhat greater low-frequency output from that position.
  • Both locations appear to rely solely on full-range drivers, suggesting the factory configuration was not designed around a component speaker setup with dedicated crossover networks.
  • Replacing the rear door panel speakers with aftermarket 4x10 inch full-range units could potentially broaden the overall soundstage, though the extent of any improvement would likely depend on the quality of the replacement drivers selected.