Adrian
Customer service was awesome and…
Customer service was awesome and everything is working perfectly.
Response from Quantum GearSep 14, 2026
Adrian, that's exactly what we like to hear. Enjoy the ride and don't be a stranger.

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.
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Showing 108 reviews with 5 stars · Clear filters
Adrian
Customer service was awesome and everything is working perfectly.
Response from Quantum GearSep 14, 2026
Adrian, that's exactly what we like to hear. Enjoy the ride and don't be a stranger.
Steve C.
Great communication with seller service great product. Honest prices
Response from Quantum GearSep 14, 2026
Steve, thank you. We try to treat people the way we'd want to be treated when we're the ones buying, so this means a lot.
Ryan L.
Transmission arrived quickly. Shipping core back was a breeze. And price was competitive. Transmission is working great
Response from Quantum GearSep 14, 2026
Ryan, this one made my morning. Hope that truck treats you well for a long time, and you know where to find us if another one ever needs doing.
Paul H.
Fast shipping
Response from Quantum GearSep 14, 2026
Ha, that's all we needed to hear, Paul. Thanks for taking the time.
Chris E.
This is my second transmission from quantam. 2 different vehicles. I will for sure keep their number in my back pocket. Shipped to me in 2.5 days. Super responsive. Love em. 10 stars!!!
Response from Quantum GearSep 14, 2026
Chris, a repeat customer is the best compliment there is, and 10 stars on top of that, come on. Really glad to have you. Take care of those two rigs and we'll be here whenever you need us.
Justin W.
Great accuracy and speed of my order. Outstanding customer service.
Response from Quantum GearSep 14, 2026
Justin, appreciate you. Getting it right the first time is the whole job, glad it felt that way on your end.
Bryan P.
Shipping was fast and simple with the core return being just as simple. Transmission was in good shape and seems to be working great. Really liked the fact that t was flashed already and as easy as plug and play.
Response from Quantum GearSep 14, 2026
Bryan, glad the whole thing was painless from start to finish. Enjoy it, and thanks for writing this up.
Marjorie M.
We are very satisfied with the transmission that was ordered through this company. The buying and shipping process was very easy and we appreciate their service. Highly recommend.
Response from Quantum GearSep 6, 2026
Thank you Marjorie! Easy from ordering through shipping is exactly what we aim for. We appreciate the recommendation.