Cody D.
Great company
Great communication. Everything was included. Great deal! Already recommended to several others.
Reply from Quantum GearSep 30, 2026
Cody, passing our name along is the best thing a customer can do for us. Thank you for that.

Excellent
Based on 121 reviews
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
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 Folks Told, with an average rating of 4.9 out of 5.
Showing 108 reviews with 5 stars · Clear filters
Cody D.
Great communication. Everything was included. Great deal! Already recommended to several others.
Reply from Quantum GearSep 30, 2026
Cody, passing our name along is the best thing a customer can do for us. Thank you for that.
Michael K.
Great process very efficient would recommend
Reply from Quantum GearSep 30, 2026
Michael, glad it went smoothly on your end. Take care.
Robert G.
Came quickly, great product, and easy return for core fee
Reply from Quantum GearSep 30, 2026
Robert, thank you for this. Glad it all went the way it should, core return included.
Thomas R.
In an industry where it is difficult to trust the products you purchase quantum gear is a company that delivers with speed, professionalism and integrity. Great service, I hope I don’t have to replace a transmission again anytime soon but if I do I will buy it here.
Reply from Quantum GearSep 30, 2026
Thomas, trust is the hardest thing to earn in this business and the easiest to lose, so this one means a lot. Hope you never need us again, and if you do, we'll be right here.
Dorrie and David W.
From ease of ordering to verification by Quantum to communication about process and what and when to expect the delivery, this team knocked it out of the park! The friendliest service combined with fast shipping and fast turn around of the core return! I also cant forget to mention the transmission was perfect!!! They included all the fluid too! This was honestly the very first transmission i have ever gotten either to replace one or even had built that was perfect out of the gate! They even made sure the programming to vin was handled!
Reply from Quantum GearSep 28, 2026
David, Dorrie, this is the kind of review we print out and stick on the wall. First one that was right out of the gate, that's a high bar and we're glad we cleared it. Thank you both.
Ran D.
I was skeptical because they were much cheaper than Jasper but the reviews were good and a few hundred miles in, I can’t complain about anything. Entire process was pretty simple.
Reply from Quantum GearSep 28, 2026
Ran, skeptical is the right way to start when someone's cheaper than the big name. Glad the miles are backing it up, and hope they keep doing that.
Ray M.
Ordering was easy they shipped it to my farm, Got it installed and it worked great shipping the core back was easy they took are of everything overall a very satisfying experience
Reply from Quantum GearSep 25, 2026
Ray, glad it made it out to the farm and went in without a fuss. Thanks for writing.
Taylor M.
Very responsive and quick!
Reply from Quantum GearSep 25, 2026
Taylor, thank you for taking a minute to write this. Glad we could keep things moving for you.