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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
    Power Mirrror Gears

    Posted by George White on 19th Jun 2019

    Received my my mirror gear parts, got them replaced and it worked perfectly. Had a little trouble getting the spring lock ring started in the correct place , but other them that perfect.

  • 5
    I've been looking for this!!!

    Posted by Jose Retana on 18th Jun 2019

    This it's what I've been looking to fix my 07 Tahoe power folding mirrors issue, easy to fix and confident that this will be a lifetime fix as the gears are metal and not the cheap factory plastic. Great parts and fast shipping. Thanks Gruven parts for making this product available!!

  • 5
    excellent quality and fit

    Posted by jonathan on 14th Jun 2019

    awesome precision made parts - thanks

  • 5
    2008 GMC Driver Side mirror motor and drive assy.

    Posted by Wayne T. Hertel on 9th Jun 2019

    This is my second motor and drive assy. The first one was for the passenger side mirror several months ago. This assy. has worked so good that when the drivers side motor went out I ordered one for the driver side. I am very pleased with the quick response time in ordering the parts, and also how good the part is.

  • 5
    Works better than factory gears

    Posted by Dave Smith on 7th Jun 2019

    Had one mirror not working! Ordered a set for both mirrors with the gears attached to the shaft, new gears work smoother and faster than factory. Follow the pictured instructions precisely when you get to compressing the spring, use a large socket and your drill press to compress the spring turning the retainer with a large pliers. Very pleased with the replacement parts and a lot cheaper than a new mirror.

  • 5
    excellent product

    Posted by Rich Kiser on 5th Jun 2019

    The instructions were very thorough and the high quality photos were a big help! The process isn't too difficult. It will require some time to get through the first one so don't attempt it in a hurry. I had good luck with a socket on the spring retainer. I drilled a hole in a piece of wood to hold the worm gear shaft straight while the epoxy set up overnight. That worked real well even though it wasn't perfectly squared. The extremely tiny amount of wobble still functions perfectly. I'm a gruvenparts.com fan!

  • 5
    Perfect fit

    Posted by Jose Sanchez on 30th May 2019

    The motor and gear received was a perfect fit for my broken mirror gear and 100% better than the garbage GM installs on these expensive vehicles. Installation was by no means easy even with the instruction but with time and patience you can do it.

  • 5
    Decently tough install but definitely worth it

    Posted by Brian B. on 29th May 2019

    The installation was not as easy as the instructions might make it sound. However, part of that was due to not having the proper tools to compress the spring. I was extremely resourceful and found a few things to help that part out. It was by far the toughest part of the install. Gear and motor is definitely upgraded now. I only did one side and the new side is much louder and faster than the other. Overall, I'm pleased as I regained the functionality and didn't have to pay a shop to do it.

  • 5
    Mirror replacement gears

    Posted by Lou on 21st May 2019

    The instructions were a little confusing to me. However, the clear pictures helped me to figure out what had to be done. The first mirror was slow and deliberate but the second one was much easier. I used a vice to remove the spring retainer. I used a socket to collapse the spring then used a slip jaw pliers to turn the retainer. Then I slowly opened the vice while it retained the spring.. Installation was done the opposite using the vice to collapse the spring and using the pliers to turn the retainer. Be sure to use a vice with vertical jaw height to keep the unit straight when collapsing the spring so it does not pop out.

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