Skip to content
Welcome to our new Site We are adding some final touches. For other T-harnesses Options please visit T-harness.com. Thank you
Welcome to our new Site We are adding some final touches. For other T-harnesses Options please visit T-harness.com. Thank you
Text/Call (602) 320-7004 Email: Support@lljcustoms.com
GM/GMC 8" inch speaker adapter is a perfect factory replacement. This will allow you to upgrade from the factory 6x9 speaker to an aftermarket subwoofer or mid-range speaker from the list down below. Our GM speaker 8 inch adapters are plastic injected, Not glued HDPE parts that require screws holes. Our adapters are a direct fitment replacement for the factory speakers and require no modifications or damage to your vehicle.        

Fitment:

Chevy:
-2014-2023 Silverado 1500-3500
-2014-2024 Tahoe
-2014-2023 Suburban
GMC:

-2014-2024 Sierra 
-2014-2024 Yukon

Compatible Speaker Dimensions:

**Speaker must be within or up to the Following Dimensions.**

Mounting depth: 3.5 In. / 88.9 mm
OD Diameter: 8.15 In. / 205 mm

All LLJ products have a 5 year warranty.

Unique

Our designs are not just original they are both cost effective and durable.

Original

We work very hard to be original and design products that look nice but are affordable. Unfortunately some have taken advantage of our designs to over charge.

Because we know you wont need it

But just in case you do its there.

Function meets quality

We believe everything you buy should be an investment. With this in mind me manufacture products you can reuse .to maximize your investment.

Automotive Amp Racks

Silverado pickup amp rack 2014-2019 12"

LLJ Customs Car Audio Fabrication
$50.00 USD - $60.00 USD
$50.00 USD - $60.00 USD
$50.00 USD - $60.00 USD
$50.00 USD
In stock

The Silverado/Sierra Pick-up amp racks are not just the first of their kind ,they are also the best. Our amp racks are designed to fit into place,...

View full details

Silverado pickup amp rack 2014-2019 28"

LLJ Customs Car Audio Fabrication
$100.00 USD - $110.00 USD
$100.00 USD - $110.00 USD
$100.00 USD - $110.00 USD
$100.00 USD
Low stock

The Silverado/Sierra Pick-up amp racks are not just the first of their kind ,they are also the best. Our amp racks are designed to fit into place,...

View full details

Automotive Amp Rack 2019-2022 Silverado Sierra rear under seat

LLJ Customs Car Audio Fabrication
$80.00 USD - $80.00 USD
$80.00 USD
$80.00 USD - $80.00 USD
$80.00 USD
In stock

This amp rack is mounted under the rear driver side below the rear seat. It uses the lowering jack equipment holder bolt. This custom cut amp rack ...

View full details

Silverado pickup amp rack 2014-2019 37"

LLJ Customs Car Audio Fabrication
$125.00 USD - $135.00 USD
$125.00 USD - $135.00 USD
$125.00 USD - $135.00 USD
$125.00 USD
In stock

The Silverado/Sierra Pick-up amp racks are not just the first of their kind ,they are also the best. Our amp racks are designed to fit into place,...

View full details

Silverado pickup amp rack 2014-2019 48"

LLJ Customs Car Audio Fabrication
$180.00 USD - $190.00 USD
$180.00 USD - $190.00 USD
$180.00 USD - $190.00 USD
$180.00 USD
In stock

The Silverado/Sierra Pick-up amp racks are not just the first of their kind ,they are also the best. Our amp racks are designed to fit into place,...

View full details
Shop collection