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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
    Life (and money) saver

    Posted by Brian on 11th Aug 2016

    For someone like me that has to fold their mirrors in and out every day to get in and out of the garage fixing the broken folding mechanism was a priority. Sure enough, once I got into the motor the old gear had actually cracked/split into 2 pieces. The new gear did the trick and it's been working great ever since. Saved a lot of time and money. Vehicle is a 2009 Escalade EXT. Instructions were invaluable. There is a lot going on in that small space :) -- response -- Awesome, thanks Brian. Please use the heck out of these and report back with an update. FYI we are getting a batch of new motors in for these folding mirrors as well, I know some people have been struggling with weak/dead motors. These new motors will really move the mirrors in QUICK so you arent waiting for the fold cycle as long :) Paul@GruvenParts.com

  • 5
    Too Easy

    Posted by S. McD on 5th Aug 2016

    Saved lots of money with DIY gears, these are of much better quality than original parts and saved hundreds of dollars not having to replace the entire mirror assembly. Straight forward instructions and simple install. Totally recommend these gears to anyone and will always come back to Gruven Parts for future needs.

  • 5
    Another great product from Gruven!

    Posted by Murray on 4th Aug 2016

    These gears work great! The instructions were easy to follow and right on the money. I had to do both sides so I'll share a few tips. This is an easy job, take your time and remember you're working with a lot of plastic so go easy. The worst part of the job is disassembling the motor, don't be afraid to bend the case, you can straighten it once its apart. Make sure to get the gear fully seated on the drive screw. Bench test the motor when it's reassembled. When putting the case back together I used a hammer to tap the case back in place and bent the top where the mount comes thru (the round opening at the top), this caused the unit to bind and not go thru it's full range of motion. So once again bench test! Finally, the recommended epoxy has a STRONG odor so you will want to mix it outside or at least in a ventilated garage. Thanks to Gruven my mirrors fold again!

  • 5
    Perfect Solution

    Posted by Seth Anderson on 20th Jul 2016

    New gear fit perfect, and the online instructions were great, very detailed. Tearing into the mirror takes a little mechanical ability, but should be easy enough for anyone to figure out. -- response from GruvenParts -- Thanks Seth ! Please post up on the forums if you can. Not many people seem to know about this repair. Let us know if any issues too. Take care! Paul@GruvenParts.com

  • 5
    Great Parts

    Posted by -J on 12th Jul 2016

    Went in like a snap and looks to be more robust than the broken OEM parts I removed.

  • 5
    fix your folding mirror

    Posted by paul williams on 11th Jul 2016

    Gear works great , easy to install. It is great to see that there are people out there that can fix problems for others. Thanks, Paul W

  • 5
    Perfect Fix

    Posted by Unknown on 11th Jul 2016

    Follow the directions and your mirrors will be back in working order.

  • 5
    GM MIRROR SPUR GEAR REPLACEMENT

    Posted by DENNIS LAM on 9th Jul 2016

    ITS A GOOD REPLACEMENT IF YOU HAVE ANY ISSUES THEY ARE VERY HELPFUL GOOD PEOPLE TO WORK WITH

  • 5
    Gear does the trick

    Posted by Jim on 8th Jul 2016

    I finally received the new spur gears several weeks after placing the order. Apparently they were not ready for shipment when I placed the order. My first impression was, Really? $50 for these? They look like a simple plastic gear, nothing magical. I used the very good installation instructions from their website. It was excellent! Very detailed and easy to follow. I only encountered difficulty removing the glass mirror from the base. After several attempts it finally come off. The first side took me 1 1/2 hours. The other side was much easier, having learned the procedure, taking about 45 minutes. I used a drill press with a 15/16 socket to compress the spring. The gears fit and worked perfectly. No more unsteady flappy mirror, and of course they fold in and out as designed. They do seem to operate much more smoothly and quieter than ever before. Time will tell if they outlast the original gears. All and all, I highly recommend this fix for the GM power folding mirror problem.

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