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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
    replacement

    Posted by Unknown on 24th Jul 2017

    works great and was easy to install

  • 4
    Nice fit.

    Posted by James on 24th Jul 2017

    Only four stars right now because I just did it. Everything was fairly easy to do. The hardest part was getting the cases apart that contain the motor and gears. The 1" pvc pipe worked great. About a foot of it to depress the spring and turn the ring. Also I used masking tape to tape the spur gear and the worm gear and the epoxy didn't get all over everything. Just let it dry before removing the tape. I also drilled out the plastic where the motor shaft goes and ground the ends of the worm gear so there was no chance of it touching the case. Everything works.

  • 5
    Ain't an average Joe project

    Posted by T.Ron on 23rd Jul 2017

    The spring took two of us w a socket and one w/ channel locks. We are way above average mechanics and this job was tough for us. Works great now, but be ready and have a vice and a helper.

  • 5
    Waited 3 years to find a fix

    Posted by Rob Jacobsen on 16th Jul 2017

    Hard to believe I was able to find a cure for this, a mastermind at work is what Paul is. Wish I had been smart enough to order both sets and save a few buck but just finish the first one today and reordered the 2nd one. I posted your info on the GMC-truck forum

  • 5
    Finally, a fix after 3 years

    Posted by Rob J on 16th Jul 2017

    I had just about given up on fixing my broken folding mirror and then I stumbled across this site, wow everything you needed for a reasonable price. Hard to believe that a few reviews have whined about the price when you consider the options. I'm an "old school" guy (75+) so I'm used to screws, bolts, tapered pins, etc. so all the plastic tabs/snaps held me back some, didn't think I'd ever get the mirror unsnapped from the motor assy. I also found a piece of 1" I.D. PVC worked much better for me as it would grip the lugs on the locking ring better than a socket. I posted your info on the GMC-truck forum and now I will order the 2nd set which I now realize I should have done initially. Thank you for a great fix!!

  • 5
    Did as advertised, which is rare these days

    Posted by Unknown on 15th Jul 2017

    Very happy with the power mirror upgrade. Good stuff!

  • 5
    Here's a tip

    Posted by Unknown on 15th Jul 2017

    It works great. I didn't have an arbor press but instead used a scrap 1" PVC pipe to manually press down on the spring retaining ring and turned it while depressing. The DIY instructions were easy to follow. I'm glad I fixed it.

  • 5
    Gear replacement

    Posted by Unknown on 14th Jul 2017

    The instructions made sense and the motor and gear are as good of quality as advertised. The mirror works better than when it was new.. Thanks, John

  • 5
    Works Great !

    Posted by Bob S. on 13th Jul 2017

    I ordered the brass gears and hi-torque motors for my 2012 Silverado but I'll admit I was a bit apprehensive about taking apart the mirrors . I actually let the parts sit on my bench for a month until I got up the nerve to tackle the job ! Well it was so easy that I had the motor out , apart , and had epoxied the new gear in place in about 45 minutes ! Reassembly was even easier, and after getting the mirror in sync with the other side everything worked great ! I'll be doing the drivers side this weekend even though it is still working . If your mirrors don't work this is definitely the way to fix them . If I can do it , anybody can !

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