

💡 Light Up Your Legacy — See More, Drive Safer!
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.
| 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 |
L**O
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.
R**S
Works for the money
Works on my 05 Silverado 2500 hd, very easy install and increased the brightness of my high beams
W**G
Easy install and works great!
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!
L**N
I can see better
Excellent product. Very easy installation. Now all four headlights come on and I can see much better. Lots of deer around here and I need all the help I could get seeing at night. Thanks for a great product.
A**W
Great value for the money. Safer and looks great! Ingeinous solution.
Works great. I've got multiple installed in my 03-06 Sierras. So much better than finicking with stupid failure prone bulbs.
D**S
Works great makes night driving easier!
Awesome product, easy to install! Just got a few weeks ago, so can’t tell ya how long it lasts. But im glad I bought it, makes driving at night much better! Comes with a QR code to video on install.
P**T
Easy Installation
Works as advertised. Turns night into daylight. Easy installation
G**Z
Great item for lighting features
This is a great hack, innovation and great performance at nights
Trustpilot
2 months ago
3 weeks ago