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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
    Very Good

    Posted by Michael W on 29th Sep 2016

    Great replacement and spot on installation instructions.

  • 5
    Just what my broken mirror needed!

    Posted by Sierra Driver on 26th Sep 2016

    I followed the directions provided on the website and had both gears and motors replaced in about 3 beers (a couple of hours, I think.) The first one took a little while to find the right tools, but the second one was a breeze. Now both mirrors are tight and fold properly (and faster than before with the new motors.)

  • 5
    Worked as Advertised

    Posted by Joe on 25th Sep 2016

    What a great solution for those wiling to do it themselves! Making the step by step instructions available to you also a big plus! A slight add or option for taking off the spring for those that don't have a press would be to just screw down the mechanism once the housing is off and use a short length of 1" ID PVC pipe with a 90 degree elbow. Press, twist, and slowly release the pressure. One other note is to be sure to fully thread the spur gear on to the worm gear prior to using the epoxy. This might take just a little more torque than anticipated. After doing that, undo and follow the instructions as provided. I am very happy with the results. Thank you GruvenParts and Paul for your help.

  • 5
    It's Alive!!!

    Posted by Kevin on 22nd Sep 2016

    First time the mirror broke the dealer fixed it under warranty, but that wasn't going to happen this time. This is a much better option since it should work forever.

  • 4
    Good replacement parts

    Posted by carmen patone on 21st Sep 2016

    Product arrived quickly and packaged well. Gears seem to be superior to oem design. Tutorial that is provided is spot on and detailed. I left off one star due to unknown reliability, However I do not anticipate any problems. Once again Gruven parts comes through. Thanks Paul.

  • 5
    GMC folding mirror spur gear

    Posted by Unknown on 21st Sep 2016

    Received item very quickly after ordering. Installation instructions on website were very detailed.

  • 5
    Works Great !!

    Posted by Frank on 16th Sep 2016

    OK, so when I got it the part appeared to be a little pricey and the procedure is definitely not for the mechanically challenged. BUTTTTTT, If you work slow, follow the directions exactly, what you'll end up is working mirrors. Great Part !!! p/s while I was installing it I found out why it appeared to be pricey, but in reality someone put a lot of work designing the part .

  • 4
    Simple Installation

    Posted by David H on 11th Sep 2016

    GM's corner-cutting with a cheap plastic gear connecting brass to steel in a motor housing made to last for decades was very frustrating. Enter the first thing I liked about these guys - entrepreneurial spirit. Very pricey product, but still about 5% of a dealer repair that would replicate the real problem. Instructions were detailed and thorough and installation went without a hitch. I installed the gear less than a month ago, so I can't comment on durability, but the lifetime guarantee sure beats GM. Thanks to Gruven for seeing a need and filing the void. >>response from Gruven<< Thanks David for the honest review. Please let me know if any issues. Run the heck out of that mirror now it should outlast the vehicle. Please note we also do now sell the replacement motors should you ever need 1. Those have also been a weak point in the mechanism. Paul@GruvenParts.com

  • 5
    Perfect Product for 2008 Avalanche

    Posted by Kim S. on 21st Aug 2016

    The step by step instructions were spot on which made the uninstall of the old gear and reinstall of the new spur gear very straightforward and easy to follow. After two days of use the gear is working just fine, hopefully it will last The rest of the life of the vehicle. I am very satisfied with the overall experience from ordering, paying and installation.

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