Side Mirror Extensions for 2015 GMC
Updated 04/15/2026 | Published 04/08/2026
Question:
Im looking for side mirror extensions for 2015 GMC, dimensions are 9x12 tall
asked by: James A
Expert Reply:
Hi James; we have towing mirrors like the K-Source Universal Dual Lens Towing Mirrors # KS3990 you can use on your 2015 GMC. There may also be custom towing mirrors if you can tell me what kind of GMC you have.
(click to enlarge)
Ray
4/15/2026
James, I purchased the K-Source mirrors for my 2020 Toyota Tacoma, and they work great. Easy to install and remove, and they give me excellent vision when towing my trailer.
Don
4/15/2026
I bought the dual-lens mirrors, but found them hard to use. Having three images out there at different magnifications confused me and slowed down my reaction time. I then bought the K-Sorce model 3891, which adds just one mirror to my existing. I found this very useful. It has a slight convex shape but doesn't distort the image much. You can turn to mirror to be vertical or horizontal. It also mounted securely on my 2020 Telluride mirrors.
Bob K.
4/15/2026
I bought those extension mirrors for my F150 to trailer my new airstream. My F150 does not have the extendable towing mirrors and thought I would need these. After using them once and seeing how small they were, they didn’t help much and then found when I was in tow mode and I had my blinker on the cameras at the end of my truck mirror actually gave me a very good view on the center console so I don’t use them anymore. They’re a little funky to put on the mirror and make it fit but work that one out.
Product Page this Question was Asked From
K-Source Universal Dual Lens Towing Mirrors - Clip On - Pair
- Towing Mirrors
- Clip-On Mirror
- Manual
- Pair of Mirrors
- Universal Fit
- Fits Driver and Passenger Side
- K Source
more information >
Continue Researching
- Search Results: towing mirrors
- Shop: Towing Mirrors
- Shop: Replacement Ratcheting Straps for K-Source Universal Towing Mirror - Clip On - Qty 2
- Shop: K-Source Universal Dual Lens Towing Mirrors - Clip On - Pair
- Shop: SoftStartUp Plug-In Soft Start for RV Air Conditioners - 50 Amp Dual AC
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Hitch
- Article: Trailer Wiring Diagrams
- Search Results: trailer hitch
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer wiring
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Shop: Trailer Wiring
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: trailer tires and wheels
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Q&A: Does etrailer Carry Furrion Chill Cube w/ Heat Pump to Replace Dometic Duo-Therm
- Video: Towing Mirror Options - Custom Fit VS Universal Fit
- Shop: etrailer Anti-Rattle Hitch Collar for 2" Hitch Receivers
- Search Results: trailer jack
- Video: A Look at the Power Mountain Tallboy 6 Ton Off-Road Bottle Jack with a Military Cargo Trailer
- Shop: Brake Controller
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Shop: Power Mountain Tallboy Off-Road Bottle Jack - 8-1/2" to 37-3/4" Lift - 6 Tons
- Article: 5 Things to Know About Weight Distribution Hitches
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Dometic Soft Start for Dometic B59516.711C0-MX
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
on Towing Mirrors
Dennis B.
4/15/2026
I purchased the K Source Towing Mirrors several years ago and I've found them to be effective for the price. They won't be as good as OEM mirrors that would come with a vehicle either for visibility or ease of use, obviously. With a little practice with installing and adjusting them, they serve the purpose. It takes 2 people to adjust the passenger side mirror, but you get used to it. I was a little concerned about how secure the mounting would be, but they haven't budged in use.