What we researched for this specific generation: where an enclosure actually fits, what the factory speakers are, how the factory audio is wired, and which real builds and commercial products exist for it. Confidence badges say how well each figure is sourced — this is research, not manufacturer spec.
Body styles covered: 2-Door Coupe, Convertible (early years only)
These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.
| Location | trunk |
|---|---|
| Outer bounding box | not found |
Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.
| Subwoofers | 1x10" sealed, custom-built — no named commercial product confirmed |
|---|---|
| Box type | sealed |
| Location | trunk |
| Subwoofers | Not researched yet (no named commercial product confirmed to anchor a specific enthusiast-tier recommendation) |
|---|---|
| Box type | unconfirmed |
| Location | trunk |
Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.
| Factory speaker size | n/a — no factory door speaker location on this generation. All factory speaker locations were dash-mounted (see other speaker locations); doors were never a factory audio location. |
|---|---|
| Known obstructions | Not a factory location |
| Adapter bracket needed | n/a |
| Factory speaker size | n/a — 2-door body styles only |
|---|---|
| Known obstructions | No rear doors on this platform |
| Adapter bracket needed | n/a |
| Factory amp / premium audio | No named premium-tier system or factory amplifier found — consistent with our other pre-1980s pages. The real distinction on this generation isn't a premium tier, it's mono vs. stereo factory radio (see other speaker locations) — a more basic but genuinely important fork for any build, since it determines whether there's one dash speaker or two. |
|---|---|
| Adding subs without a head-unit swap | Confirmed straightforward — trunk-based builds don't touch the original head unit. |
| Head unit | No replacement needed |
No measured trunk dimensions, and no cargo figure from Chevrolet or the EPA, were found. The only maker-listed subwoofer kit found is Custom Autosound's Backseat Driver, listed for the Camaro '67-'70: it overlaps this guide in 1970 only and prints no dimensions (listed below). No box made for a 1971-1981 Camaro was found from the box makers checked.
Outside links. Some are commercial products, some are owner builds posted on forums — the label says which. We do not endorse any of them.
Each link opens the tool with this vehicle already selected.
Measure your own vehicle. Trim levels, factory subwoofer options, and mid-generation changes all move these numbers, and a box cut to a researched figure that does not match your truck is wasted wood. Where a badge reads Unconfirmed, treat the value as a starting point for your own measurement, not as an answer.