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GruvenParts.com Strengthened Spur Gear for 2007+ GM Trucks Folding Mirror Assembly

$99.99
(639 reviews) Write a Review
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Description

GM Power Folding Mirror Repair Kit (Billet Steel)

Stop replacing $1,000 mirrors with the same flawed parts. The factory power-folding mirrors on GM trucks and SUVs fail because of a single, inexpensive plastic gear. When that gear cracks, dealers charge upwards of $700–$1,200 for a full mirror assembly that carries the exact same defect.

GruvenParts.com provides a permanent, engineered solution: high-strength Billet Steel gears and high-torque motors designed to outlast the vehicle.

The Engineering Gap: OEM Failure vs. GruvenParts Solution

Feature

 

OEM Factory Unit / Boost Auto

 

GruvenParts Billet Solution

Gear Material

 

Thin, fragile plastic spur gear.

 

High-strength Billet Steel (integral spiral shaft).

Failure Mode

 

Fatigue cracking from age or minor impact.

 

Virtually indestructible; tested to 5,000+ cycles.

Motor Specs

 

Low-torque; prone to burnout.

 

High-torque custom motor for smooth operation.

Grounding

 

Externally grounded (Incompatible with metal).

 

Internally grounded to prevent BCM short circuits.

Cost

 

$700 - $1,200 (Full assembly).

 

Under $100 (DIY Gear/Motor Kit).

Critical Technical Note: Why the Motor Matters

You cannot simply install a metal gear onto the factory GM motor. The OEM motor circuit is not designed for a conductive metal gear; attempting to "mix and match" will short out your Body Control Module (BCM). Every GruvenParts kit includes our custom-engineered, internally grounded motor to ensure electrical safety and increased torque.

Choosing Your Repair Path

Path 1: DIY Gear & Motor Kit The most cost-effective choice for those comfortable with a workbench repair.

  • Includes: 1 or 2 Billet Steel Gears and High-Torque Motors.
  • Best For: Owners looking for a permanent fix at the lowest price point.
  • Compatibility: Fits 2007–Present GM Non-Tow Mirrors (Silverado, Sierra, Tahoe, Yukon, Suburban, Acadia, Traverse, Enclave, Escalade).

Path 2: Pre-Assembled Drive Unit (Core Exchange)

Skip the internal assembly and swap the entire drive unit.

  • Includes: A fully rebuilt motor drive unit with the steel gear and motor already installed and tested.
  • Process: Requires a $30 core deposit. Send us your rebuildable old unit to receive your refund.
  • Note: Due to high demand and core availability, lead times can vary (approx. 4–6 weeks). For the fastest turnaround, you may send your unit in for a same-day rebuild.

Application & Fitment

This kit is designed for Standard (Non-Towing) Power Folding Mirrors on the following 2007–Present models:

  • Chevy: Silverado, Tahoe, Suburban, Avalanche, Traverse.
  • GMC: Sierra, Yukon, Denali, Acadia.
  • Cadillac/Buick: Escalade, Enclave.

Warranty: This product carries a Limited Lifetime Warranty. If the gear or motor fails under normal operating conditions, we will replace it free of charge—you only pay shipping.

Installation & DIY Support Library

We’ve documented the repair process across all compatible GM generations. Select the guide below that matches your vehicle's year and model.

2007–2013 Trucks & SUVs (and 2014 Tahoe/Suburban)

Includes Silverado, Sierra, Tahoe, Suburban, Yukon, and Escalade.

  • Video Walkthrough – Watch the full step-by-step disassembly and gear replacement.
  • PDF Guide – Downloadable instructions for your workbench.

2014–2018 Silverado & Sierra

Note: These models use updated plastics in the mirror frame, but the internal drive unit remains compatible.

2015–2019 Tahoe, Suburban & Yukon

GMC Acadia, Chevy Traverse, Saturn Outlook

Expert Installation Tips & FAQ

To ensure a successful repair and protect your vehicle's electronics, please review these critical requirements before beginning your installation:

  • The "No-Mix" Rule (Electrical Safety): Never attempt to install the Billet Steel gear using the original OEM motor. The factory motor is externally grounded; using it with a metal gear will create a short circuit and permanently damage your Body Control Module (BCM). You must use the internally grounded motor provided in our kits.
  • Mirror Type Verification: These parts are specifically engineered for Standard (Non-Tow) Mirrors. If your mirror extends outward for towing, these gears will not fit. Click here for our Towing Mirror Gear Page.
  • 2014+ Pickup Differences: If you own a 2014 or newer Silverado/Sierra, the mirror frame plastics differ from earlier generations. While the internal drive unit is identical, the housing disassembly requires a slightly different approach. Please refer specifically to our 2014-2018 PDF Guide.
  • The "Core" Condition (Option 2): If purchasing the pre-assembled drive unit, your returned "core" must be in rebuildable condition. We can only accept units where the motor or spur gear is the point of failure. If the main plastic housing or frame of your drive unit is physically shattered, it cannot be rebuilt or refunded.
  • Tool Tip: We recommend having a basic set of trim removal tools and a small socket set. Take photos during disassembly to ensure wire routing remains clear for the re-install.

**** NEED SPARE POWER FOLDING NON-TOW MIRROR PARTS ? PLEASE CLICK HERE FOR THE SPARE PARTS PAGE ****

639 Reviews

  • 5
    Great product, better instructions

    Posted by Derek L on 6th Jan 2020

    Purchased the gear and motor combo. The gear is clearly superior to the OEM plastic component, as expected. I am most impressed with the detailed YouTube video showing how to install it. I never would have made it through the process without it.

  • 5
    ‘09 Silverado

    Posted by Steven on 5th Jan 2020

    I bought the full kit of both gears/motors. They fit perfectly and perform well. I feel confident that they will last the life of the truck.

  • 5
    product is exactly that is presented.

    Posted by Ed on 5th Jan 2020

    Part fits helpful in line diagrams and pictures with instructions.

  • 5
    Looks good

    Posted by Tim Rhoton on 4th Jan 2020

    I live in a high altitude area of Arizona and it is presently very cold and snowy outside. I have not yet tried to replace the mirror parts and probably will not until the weather warms up. I do not want to take a chance on breaking the plastic parts around the mirror due to the cold temps. I have received the mirror parts, they look solid and hopefully I can accomplish putting them in and getting my mirrors functioning again. Thanks for making a replacement part that will last and also the how to VIDEO to refer to. This is much preferred over taking to a dealer for high $$$ rip. THANKS -- response -- Thanks Tim. You can heat up the plastic mirror assembly with a hair dryer to make it softer if you dont want to wait. But I understand its not fun working on a car in freezing temps! Hopefully warms up soon, its a beautiful area out there !

  • 5
    Great product. Great company.

    Posted by Jim Hanson on 2nd Jan 2020

    Great product. Install video is makes installation easy for the DIY'r. Two notes; the grease is a white lithium grease available at your auto parts store, and if mirror spins and does not stop, the base was not installed properly, test a couple times for correct movement prior to installing spring. -- response == Thanks Jim. As you pointed out, if the mirror spins 180, it means the collet is not seated correctly. Please double check the DIY instructions on the collet positioning. It will only fully seat 1 way, and it must be fully seated for the mirror stops to function properly.

  • 5
    Just What I Needed

    Posted by Darren Misar on 31st Dec 2019

    This part was a high-quality, perfect fit. Together with the installation video this made my life very easy. So happy to have my mirrors functioning again like new.

  • 5
    Great Design

    Posted by Lou on 29th Dec 2019

    Just replaced my power folding motor and gears for my 08 Avalanche. What a great design!!! This is how it should have been stock from the company, but you know that would never happen. The instructional video was all the help I needed, took it apart, replaced the gear and motor then reassembled everything in about 2 hrs. I bought 2 sets, going to replace the 2nd set when the weather warms up.

  • 5
    Designed the way it should have been from the factory

    Posted by Unknown on 17th Dec 2019

    This is a top notch solution to an aggravating problem. These folks have everything from a quality replacement part to a fabulous step by step video to fix it. My problem was not part related - it was getting that damn mirror piece to "pop" out. Took a lot because I did not want to risk breaking the frame. Eventually it did come out and the rest was following the instructions. Since the video did not mention it, I used a 1" 12 point socket to use to take the spring off. Other than that, I would buy Gruvenparts again. I bought two motors and will do the passenger side in the Spring when it gets warmer. Thanks, guys for making this happen. -- Response -- OK thanks for the review and appreciate the tip on the 1" socket. Some have used a 12" length of 1" PVC pipe and just lean on the unit in the field to compress and turn the spring. If you do this, go ahead and wire tie the spring coils so it cant fly out. And as always WEAR EYE PROTECTION. Paul@GruvenParts.com

  • 5
    Repeat Customer

    Posted by Maurice on 17th Dec 2019

    I had to purchase another gear and motor for my side mirror because the other plastic gear decided to break after I installed a previous order. This is a different side mirror from my first review. I should have purchased two, that way I would have saved money and time. The instructional video helped tremendously. Thanks again, Maurice

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