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

$99.99
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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

  • 4
    works well

    Posted by Eric Swigart on 27th Oct 2020

    jb welded it on to the worm gear and it works just as it should. if i need other parts for anything else i will order from here.

  • 5
    Great fit -- high quality

    Posted by Darrin on 26th Oct 2020

    The passenger's side outside mirror on my 2008 GMC Sierra 1500 had been having issues folding for a while until one day, it groaned especially loud and failed to move. I'd checked for replacement parts and entire replacement mirror assemblies, but the factory GM replacement was very expensive and aftermarket mirror assemblies had, at best, mediocre reviews. At first I balked at the price of "just a little motor and gear," but when I opened the package and saw the quality of the parts, I knew it was money well invested! The online instructions and videos made the parts swap effortless and now I'm enjoying the folding function of my mirrors once again. Thanks Gruven! I have full confidence that the metal gear will hold up very well through the upcoming Canadian snow and ice winter season.

  • 5
    very good

    Posted by Unknown on 21st Oct 2020

    Good service , good quality , easy to install with the help of youtube . Cadillac Escalade EXT 2007 .

  • 5
    Excellent Mirror Fold Motor Assembly for 2008 Buick Enclave

    Posted by Bill Verbrick on 17th Oct 2020

    MY original drivers side motor became erratic and eventually died completely. The dealer wanted $800 to replace the whole side mirror claiming motors were not individually available. I found a reference to Gruven in a Buick owners forum which included complete instructions. I did a trial disassembly of my mirror and verified the motor was accessible without removing the mirror assembly from the door. I ordered the whole fold motor assembly because I wanted a plug and play solution. When the motor arrived it took less than 30 minutes to complete the job. No hassle, no painting, and my mirror is now folding perfectly. Thank you Gruven for saving me $600.

  • 5
    Well Done

    Posted by John on 16th Oct 2020

    I was skeptical about the cost however, when I got to doing the change on my Denali the youtube instructions made it simple. Following directions, I was done in about an hour and saved over $230.00 vs. a replacement mirror assembly that did not have the auto darkening the original mirror has.

  • 5
    Love it!

    Posted by Unknown on 7th Oct 2020

    I’ve installed these on both GMCs that I own. The factory ones are crap and didn’t last long given that I use them everyday in and out of my garage. The aftermarket kits have worked flawlessly for years! Great installation directions and walkthroughs.

  • 5
    Great product that whould have been OEM!

    Posted by Unknown on 5th Oct 2020

    Worked great to repair my broken mirror gear. I bought the gear pre-glued to the motor which saved some time, but wish I had just bought the whole assembly to save more time. I'm very mechanically inclined and work on all my cars but it was tricky to r&r the motor assembly, not terrible but time consuming. Thanks for offering great solutions for these vehicles!

  • 5
    Exactly what I needed

    Posted by James Bilberry on 2nd Oct 2020

    This part and the YouTube video dealing with installation was exactly what is needed to repair a funky mirror! Thanks for providing an excellent replacement part!

  • 5
    Works as advertized

    Posted by Tom on 28th Sep 2020

    I repaired my driver side mirror yesterday and very pleased to report it works well with Gruven Parts. I had to repair the passenger side 3 years ago. Nice option to buy the pre-attached gear this time. I highly recommend

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