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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

  • 5
    Quality Replacement Full Motor and Gear Unit

    Posted by Brian H. on 29th Apr 2020

    2013 GMC Yukon mirror gear broke. Didn't want to pay for the $500-$700 dollar full replacement mirror. Found Gruvenparts.com by doing a Google search. I bought the full replacement unit for $229. Sending my core back for a $30 core refund. The new motor/gear works great! Very trustworthy group and they have quick shipping!

  • 5
    Excellent fitment

    Posted by Jerry with Think Cartronics on 28th Apr 2020

    Love the repair parts and instructional video available. Being in the business for over 30 years I was/am curious about the reasoning behind every step and instruction in the video, a few times, for example being told to grind off two tabs on a pivoting plate peaked my interest as to (why) so I took a bit longer to install and repair the mirror.... by the way... genius on there part, I figured out why they were instructed to be ground off, it is so that if/when someone in a parking lot manually slams your mirror in it will not break or strip your new precious gears you just installed.

  • 5
    2008 GMC Sierra 1500 Mirror motor/gear replacement

    Posted by Unknown on 28th Apr 2020

    Very happy with these parts. Shipped quickly and foc. Followed the instructions from the excellent installation video and had no problems or surprises. Take your time, follow the video and you'll save a ton of money. Oh, and use WD40 on the electrical connections if you have trouble pulling them apart.

  • 5
    GruvenPart Video made Installation Easy!

    Posted by Jim on 28th Apr 2020

    I was very satisfied with my installation results. I purchased the spiral/pinion gear assembly and DC motor parts. The parts came quickly(could have been better packaged from possible damage). I watched the impeccably detailed video three times and then used it to step me through the process. I went step by step. Mirror works perfectly. I am very satisfied and feel that I likely saved myself $400+ had I taken it in to be serviced.

  • 5
    works so far

    Posted by Amy Branham on 26th Apr 2020

    Would use again

  • 5
    Ask yourself how much you want your mirrors to work

    Posted by Daniel M on 22nd Apr 2020

    Bought my 2011 Denalj used with broken power fold mirrors. Finally got tired of having to manually fold in at the carwash or to park in tight garages. Long story short this is not a fun project but momma didn't raise a quitter. The first mirror took me 2 hours because the dowels were jammed. The second worst part was separation of the first motor case. Honestly the easiest hard part was the spring retainer ring. I used a piece of 1 inch PVC with the mirror base on the ground. Just pump it up and down while rotating the pipe slightly until it releases. Same for reinstall. The second mirror was a breeze though. Great solution to an unnecessary problem. 0/10 want to do it again though Lol

  • 5
    Gruven's got it

    Posted by Lou on 20th Apr 2020

    The parts and work exactly as described. I was able to restore my OEM mirrors. Customer service is on the spot. Great company

  • 5
    Really like the brass gears over the cheap OEM gears

    Posted by Unknown on 19th Apr 2020

    I like the whole set up. Video was Wes good except for one thing. Confused as to why I need to grind down those 2 tabs. Saw where a couple people did not. What is the reason for grinding those tabs. --response -- Thanks and yes the tabs should be ground off. I will add a supplemental article since this seems to be the topic of so much discussion. Those tabs are safety stops that prevent the mirror unit from backdriving in the wind when the plastic gear breaks. But they really stress the unit having to overcome those tabs for each close and open cycle. You dont need them with a proper metal gear, you could never break the metal gear, you would destroy the glass and plastic mirror frame long before. Paul@GruvenParts.com

  • 5
    Gruven delivered as promised.

    Posted by Bob on 15th Apr 2020

    Glad I found out about Gruven and their repair/replacement parts for power mirrors. I ordered the motor and spur gear to repair the passenger side mirror on my 2010 Sierra. The online instructions provided by Gruven were an excellent help. Completed the repair successfully without any difficulty. Removing and re-installing the lock ring was the most difficult step. Thanks!

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