---
product_id: 32591070
title: "Fleece Performance Engineering -GM-ALO-37 Gm All Lights On (2003-2007 Classic)"
brand: "fleece performance engineering"
price: "684 DH"
currency: MAD
in_stock: true
reviews_count: 8
category: "Fleece Performance Engineering"
url: https://www.desertcart.ma/products/32591070-fleece-performance-engineering-gm-alo-37-gm-all-lights-on
store_origin: MA
region: Morocco
---

# Simultaneous high, low & fog lights No ground spade needed Plug & play fuse box install Fleece Performance Engineering -GM-ALO-37 Gm All Lights On (2003-2007 Classic)

**Brand:** fleece performance engineering
**Price:** 684 DH
**Availability:** ✅ In Stock

## Summary

> 💡 Light Up Your Legacy — See More, Drive Safer!

## Quick Answers

- **What is this?** Fleece Performance Engineering -GM-ALO-37 Gm All Lights On (2003-2007 Classic) by fleece performance engineering
- **How much does it cost?** 684 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/32591070-fleece-performance-engineering-gm-alo-37-gm-all-lights-on)

## Best For

- fleece performance engineering enthusiasts

## Why This Product

- Trusted fleece performance engineering brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted & Top-Rated:** Join thousands of satisfied drivers with a 4.8-star rating and top 20 rank in automotive lighting.
- • **Enhanced Night Driving:** Boost your nighttime safety and confidence with brighter, comprehensive lighting coverage.
- • **Illuminate Every Angle:** Activate high-beams, low-beams, and fog lamps all at once for maximum road visibility.
- • **Effortless Installation:** Simple relay swap design with no extra wiring or ground spade required—get it done in minutes.
- • **Precision Fit for Classics:** Tailored specifically for 2003-2007 Silverado/Sierra 2500-3500 models—perfect OEM integration.

## Overview

The Fleece Performance GM-ALO-37 module upgrades your 2003-2007 Silverado/Sierra lighting system by enabling simultaneous activation of high-beams, low-beams, and fog lamps. Designed for easy plug-and-play installation without the need for a ground spade, this compact module enhances nighttime visibility and driving safety. Highly rated by thousands, it’s a must-have upgrade for classic GM truck owners seeking superior illumination.

## Description

Brighten Up Your Driving Experience With This Simple Upgrade Inside Your Fuse Box. Simply Install The Gm All Lights On Module To Allow Your High-Beams, Low-Beams And Fog Lamps To Simultaneously Illuminate The Road Ahead. Once Installed The Gm All Lights On Module Will Turn On The High-Beams, Low Beams And Fog Lamps When You Turn On Your High-Beams. When The High-Beams Are Not Turned On Your Low-Beams And Fog Lights Will Function Normally. Please Note The Gm All Lights On Module Has Been Modified So That The Ground Spade Is No Longer Required For Operation In Any Of The Models That This Product Fits. Therefore, The Ground Spade Has Been Removed From This Kit. Fitment Guide: 2003-2007 Classic 2500-3500 Silverado/Sierra Installation 1. Remove The Relays Labeled: Fog Lp, Hdlp-Low, Drl, Hdlp-Hi 2. Lay The Gm All Lights On Circuit Board In The Location Shown (See Product Images) 3. Reinstall The Four Relays Back Into Their Original Location.

Review: If you have a GMT800, get this. - I bought 2 of these, one for a 2004 Yukon and one for a 2005 Silverado 2500HD. Installation takes 2 minutes, it uses all of the wires unlike the free method which puts all of the amp draw on a single set of wires, which is a fire hazard. They worked as advertised and are fantastic. Half of my driving is at night so any improvement in visibility is definitely welcomed. This product is awesome and I'd recommend it to anybody with a GMT800.
Review: Works for the money - Works on my 05 Silverado 2500 hd, very easy install and increased the brightness of my high beams

## Features

- Package Dimensions - 3.0 " L X 3.0 " W X 1.0 " H
- Package Weight : 1.0 Lbs
- Package Quantity : 1
- Product Type : Auto Part

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019JDFGEI |
| Best Sellers Rank | #5,118 in Automotive ( See Top 100 in Automotive ) #19 in Automotive Replacement Lighting Products |
| Brand | Fleece Performance Engineering |
| Customer Reviews | 4.8 4.8 out of 5 stars (6,285) |
| Date First Available | December 18, 2015 |
| Exterior | Machined |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.317 ounces |
| Item model number | -GM-ALO-37 |
| Lift Type | Automatic |
| Manufacturer | Fleece Performance |
| Manufacturer Part Number | -GM-ALO-37 |
| Model | Fleece Performance - 04.5-07 GM Duramax 6.6L LLY / LBZ GM All Lights On (FPE-GM-ALO-37) |
| Product Dimensions | 6 x 6 x 0.25 inches |

## Images

![Fleece Performance Engineering -GM-ALO-37 Gm All Lights On (2003-2007 Classic) - Image 1](https://m.media-amazon.com/images/I/61q0Du-3NmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ If you have a GMT800, get this.
*by L***O on February 26, 2026*

I bought 2 of these, one for a 2004 Yukon and one for a 2005 Silverado 2500HD. Installation takes 2 minutes, it uses all of the wires unlike the free method which puts all of the amp draw on a single set of wires, which is a fire hazard. They worked as advertised and are fantastic. Half of my driving is at night so any improvement in visibility is definitely welcomed. This product is awesome and I'd recommend it to anybody with a GMT800.

### ⭐⭐⭐⭐⭐ Works for the money
*by R***S on October 25, 2025*

Works on my 05 Silverado 2500 hd, very easy install and increased the brightness of my high beams

### ⭐⭐⭐⭐⭐ Easy install and works great!
*by W***G on December 18, 2025*

I took me less than 5 minutes to open the hood, open the fuse box, install this bad boy and close up everything. Plus it works great, just as advertised!

## Frequently Bought Together

- Fleece Performance Engineering -GM-ALO-37 Gm All Lights On (2003-2007 Classic)
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**Shop now:** [https://www.desertcart.ma/products/32591070-fleece-performance-engineering-gm-alo-37-gm-all-lights-on](https://www.desertcart.ma/products/32591070-fleece-performance-engineering-gm-alo-37-gm-all-lights-on)

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-03-02*