






🔐 Lock it down, level up your ride security.
The Tuffy Under-Seat Lockbox is a rugged, 3,500 cubic inch steel vault custom-designed for Chevy Silverado and GMC Sierra Crew Cabs (2007–2019). Featuring a double-bitted, 10-tumbler Pry-Guard lock and 16-gauge welded steel construction, it offers military-grade protection for tools, firearms, and work gear. Its quick-release mounting system allows tool-free removal from inside the vehicle, while the weather-resistant, powder-coated finish ensures durability in harsh environments. Trusted by law enforcement, contractors, and overlanders, this stealth security solution fits perfectly under the rear seat without sacrificing legroom.








| Brand | Tuffy |
| Product Dimensions | 13"D x 56"W x 7"H |
| Lock Type | Pry-Guard Locking System, Double-bitted, 10-tumbler key lock with anti-twist design |
| Color | Black |
| Capacity | 3500 Cubic Inches |
| Material | Alloy Steel |
| Special Feature | Pry-Guard Locking System – Double-bitted, 10-tumbler key lock with anti-twist design for maximum security, 3,500 Cubic Inches of Concealed Storage – Full-width design fits perfectly under the rear seat without sacrificing legroom or comfort, Trusted by Law Enforcement & Contractors – Designed for those who carry gear that can’t go missing, 16-Gauge Welded Steel Construction – Built tough to resist prying, crushing, and tampering, Quick-Release Mounting – Easily removable from the inside for flexible access and mobility |
| Mounting Type | Floor Mount |
| Control Type | Key Control |
| Included Components | 1 × Installation instructions, 1 × Pry-Guard keyed lock with double-bitted 10-tumbler key, 1 × Tuffy Under-Seat Lockbox (16-gauge welded steel), 1 × Set of mounting hardware (uses factory seat bolts) |
| Item Weight | 1.1 Pounds |
| Water Resistance Level | Water Resistant |
| Chamber Depth | 5.63 Inches |
| Chamber Height | 5.5 Meters |
| Chamber Width | 55 Inches |
| UPC | 818309022537 |
| Global Trade Identification Number | 00818309022537 |
| Manufacturer | Tuffy Security Products |
| Model | Tuffy Security Products - Lockbox | Underseat Full for Chevy/GMC Crew Cab | 2007-2019 |
| Item Weight | 1.1 pounds |
| Country of Origin | Mexico |
| Item model number | 307-01 |
| Is Discontinued By Manufacturer | No |
| Exterior | Textured powder coat finish |
| Manufacturer Part Number | 307-01 |
| OEM Part Number | 307-01 |
| Special Features | Pry-Guard Locking System – Double-bitted, 10-tumbler key lock with anti-twist design for maximum security, 3,500 Cubic Inches of Concealed Storage – Full-width design fits perfectly under the rear seat without sacrificing legroom or comfort, Trusted by Law Enforcement & Contractors – Designed for those who carry gear that can’t go missing, 16-Gauge Welded Steel Construction – Built tough to resist prying, crushing, and tampering, Quick-Release Mounting – Easily removable from the inside for flexible access and mobility |
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