Extension Kit (Chevy/GMC Only)
The Chevy/GMC TuckRack Extension Kit creates extra clearance for tonneau covers that take up more space near the front of the truck bed, including some tri-fold cover setups.
What it does
- Expands clearance up to 7 7/8 in.
- Helps fit Chevy/GMC TuckRack systems with larger tonneau cover housings
- Bolt-on installation with no drilling required
- Includes the hardware needed to install
Important capacity note
Using this extension kit decreases the TuckRack weight limit from 500 lb to 300 lb.
Best for
Chevy Silverado and GMC Sierra owners using a TuckRack with a tonneau cover that needs more front-cab clearance.
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase.
Uninstalled TuckRack returns are accepted within 14 days of purchase with return authorization from TuckRack. Return authorization can be obtained by emailing support@tuckrack.com the following information:
- Name
- Order Number
- Name of Product
- Reason for Return
Return shipping costs are the customers' responsibility. Returns will also incur a 50% restocking fee as long as there is no damage to the rack. Damaged racks cannot be refunded. Racks are carefully packaged to not scratch during shipping, if not packaged correctly the rack will be damaged in shipping.
Read and understand this entire manual before assembling, installing, operating, or servicing TuckRack, the foldable truck rack.
Download installation, and operation information by clicking the links below:
Download installation, operation, and warranty information by clicking this PDF link.
frequently asked questions
Will TuckRack fit my truck?
TuckRack is designed for most full-size pickup trucks, including GMC/Chevrolet 1500 (2019-2025), and Ford F-150, F-250, F-350 (2021-2025). These models use factory holes for easy installation—no drilling required. Older models may need drilling. Call us at (781) 953-0211 for questions or email us at support@tuckrack.com, we are happy to help!
For standard under-rail setups, your truck should have at least 20" from the bottom of the bed to the top of the rails, and a max of 21.5" from the rails to the top of the cab.
Will TuckRack work with my tonneau cover?
TuckRack works with folding or rolling tonneau covers that open past the cab. If using top-mount brackets, only top-mounted tonneau covers will be compatible.
How do I install TuckRack, how long does it take?
Installation is simple with included instructions and typically takes 1-2 hours. Professional installation is recommended. We are working with local installers, so call us at (781) 953-0211 or email us at support@tuckrack.com for more information.
