Quantum Gear Reviews | Read Customer Reviews of quantumgear.us

Quantum GearReviews of quantumgear.us

4.9121 reviews
Auto Parts & Wheels
w177n9856 Rivercrest Dr suite 221, Germantown, Wisconsin

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Quantum Gear

About Quantum Gear

At Quantum Gear, we understand that a failing transmission is stressful — and that trusting someone with a repair this important isn't an easy decision. That's why we focus on doing things the right way, from the first click to the day your unit arrives.We specialize in remanufactured GM automatic transmissions, with our core lineup built around the 6L80 and 6L90. Every unit goes through a complete remanufacturing process, where worn and failure-prone components are replaced and restored. Before anything ships, each transmission is tested on a dynamometer, so we know it performs the way it should — not just on paper, but under real load.We ship nationwide. Ordering is done online, and your unit is delivered by freight straight to you, wherever you are in the country.Whether you're a repair shop, a mechanic, or a driver simply trying to get your vehicle back on the road, our goal is the same: make the process clear and straightforward, and hand you a unit you can rely on. No guesswork, no runaround — just a properly remanufactured transmission and people who are ready to help when you have questions.

Quantum Gear (quantumgear.us) has 121 customer reviews on Five Star Index, with an average rating of 4.9 out of 5.

Also known as: quantumgear.us
Website: quantumgear.us
Category: Auto Parts & Wheels
Location: Germantown, Wisconsin
Listed on Five Star Index: 2026

About these reviews

Replies: The company replied to 99% of reviews.
Latest: Most recent review: October 2026.
Edits: Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
Score: This company cannot pay to remove reviews or change its score.

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Quantum Gear reviews

121 approved reviews, newest moderated first

Mike F.
Aug 20, 2026
They did a good job.
They did a good job.
Response from Quantum GearAug 21, 2026
Appreciate that, Mike. Glad we could take care of you!
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Brian S.
Aug 20, 2026
Chevrolet transmission
Transmission was great and easy installation, but shipping is very slow for delivery and core return
Response from Quantum GearAug 21, 2026
Glad the trans was solid and easy to install, Brian. Shipping can be hit or miss depending on the route, and we're working on tightening that up. Appreciate the honest feedback.
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Joshua C.
Aug 20, 2026
Arrived quicker than expected thre new…
Arrived quicker than expected thre new trans up in and everything works perfect on my 6L80 I just wish I knew what was wrong with the old one I sent back
Response from Quantum GearAug 21, 2026
Quicker than expected and running perfect on the 6L80, love to hear it Josh. On the old one, honestly the cores head straight to teardown so we don't really track what failed, wish we could tell you. It's a good ask though, maybe something we can set up down the road. Appreciate you!
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Jeremiah W.
Aug 20, 2026
Very good company.
Very good company.
Response from Quantum GearAug 21, 2026
Thanks Jeremiah, appreciate that a lot!
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Kayla L.
Aug 20, 2026
Great Experience
The time it took for me to get a transmission was minimal. We were able to give them the vehicle details and they provided what transmission we needed. The transmission came preprogrammed and ready to go into the truck. Once the swap was done, I was able to send them an email and they had a truck to pick up the next business day.
Response from Quantum GearAug 21, 2026
Love that it was quick and easy start to finish, Kayla. Give us the vehicle details, we get you the right unit, and next-day pickup on the core, that's exactly how we want it to go. Appreciate you!
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nicole H.
Aug 20, 2026
My overall experience with this company…
My overall experience with this company from ordering to delivery to core charge return was excellent and in a timely manner. Couldn’t ask for better service.
Response from Quantum GearAug 20, 2026
So glad the whole thing went smoothly for you, Nicole, from ordering all the way through the core return. That's exactly what we're going for. Thanks a lot for this!
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Todd M.
Aug 20, 2026
It was delivered in great condition and…
It was delivered in great condition and returning the core was easy also.
Response from Quantum GearAug 20, 2026
Love hearing it showed up in great shape and the core return was easy too, Todd. Appreciate you taking a minute to leave this!
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Ralph L.
Aug 19, 2026
Great company transmission works great…
Great company transmission works great wish they would do gmc 8 speed
Response from Quantum GearAug 19, 2026
Thanks, Ralph! Glad it's working great for you. And noted on the GMC 8-speed — we're always looking at expanding the lineup, so we appreciate you throwing that out there! Thanks for the review.
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