Under Rear 60% Bench Seat Lockbox - GM Truck Crew Cab
SKU: 340

Under Rear 60% Bench Seat Lockbox - GM Crew Cab Truck
  • Weather resistant lid design incorporates security with welded Pin-Lock hinge design.
  • Pry-Guard locking system with 1/8” thick steel welded components.
  • Exclusive 10 tumbler double bitted lock with built in weather seals.
  • Provided mounting system permits removal from vehicle in seconds without the need for tools.
  • 16 Gauge welded steel construction.
  • Durable texture power coat finish.
  • Stealthy design is hidden under the seat from prying eyes.
  • Chamfered corners easier passenger access and a more concealed form factor.
  • Over 2100 Cubic inches of lockable storage space.
  • Quick and easy install, no drilling.


Part #: 340

Colors: Black

Exterior Dimensions: 35 ¾”L x 13”D x 6 7/8”-4 7/8”H

Interior Dimensions: 35 1/8”L x 12 7/8”D x 6 3/8”- 4 5/8”H

Lid Opening: 35” x 11”

Shipping Weight: 38 lbs.

Product Description

This high security 16 gauge steel security lockbox mounts under the rear 60% bench seat in the 2007 to 2018 Chevy Silverado and GMC Sierra Crew Cab pick ups. The three-fifths width formfitting design of the Tuffy lockbox has over 2100 cubic inches of lockable storage while leaving room for an aftermarket sub-woofer or other gear under the rear passenger side seat. It’s secured contents are easily accessed by flipping the 60% rear bench seat up and lifting the lid. The unique design allows the space beneath the 60% bench seat to be used to stow firearms or other long items securely.

This lock box comes standard with Tuffy’s Pry-Guard Locking System and a 10 tumbler double bitted security lock with built in weather seals. Optional three digit combination lock for key-less entry is available. Chamfered corners are incorporated into the design for easier passenger access and a more concealed form factor.

The innovative mounting system is accessed from inside the box. When additional floor space is needed, the entire lockbox can be removed in seconds without the need for any tools. The installed placement rests inconspicuously under the seat out of sight of opportunistic thieves. Quickly and easily install your lockbox using the factory hardware without drilling in under 15 minutes.



  • Chevy Silverado Crew Cab 2007-2018
  • GMC Sierra Crew Cab 2007-2018
  • (Fits Crew Cab only and does not fit Double and Regular Cab)


No Drilling required. Fastens with original OEM hardware. View Assembly Instructions PDF
Customer Reviews
# of Ratings: 1
1. on 7/25/2019, said:
Shipped fast and easy installation. One thing I did add since I did not order the foam insert was have some carpet installed on the inside of the box. Will be adding the combo locks to replace Key locks
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