In a world where true quality is increasingly rare, Gearstar stands for the promise that there are still those devoted to the craft of well-made high-performance transmissisons.
Buy it once | Get GearstarEach and every transmission is custom built by one master technician.
Tour Our ShopEvery transmission and converter are dyno tested for the equivalent of 100 miles, to ensure they are operating perfectly before leaving our shop.
Our WarrantyAll Gearstar transmissions and converters are built to the highest industry standards, using the highest quality US-made parts and components.
Our TestimonialsWelcome to Gearstar, where we specialize in crafting custom-built transmissions that set new standards in the automotive industry.
We firmly believe that when it comes to your vehicle, you should only settle for the best, and that’s precisely what we deliver.
At Gearstar, our mission is to provide the highest-quality custom-built transmissions. In a world where true quality is increasingly rare, Gearstar stands for the promise that there are still those devoted to the craft of well-made, high-performance transmissions.
We have high-performance transmissions available for:
Ford – AOD (Level 2, 3 and 4), AODE (Level 2, 3 and 4), C4 (Level 2, 3 and 4), C6 (Level 4), E4OD (Level 3), 4R70W (Level 2, 3 and 4) transmissions.
GM – Turbo TH350 (Level 2, 3 and 4), Turbo 400 TH400 (Levels 2, 3 and 4), 700-R4 (Level 1, 2, 3 and 4), 200-4R (Level 2, 3 and 4), 4L60E (Level 2, 3 and 4), 4L65E (Level 2, 3, 4), 4L65E C5C6 (Level 4), 4L70E (Level 4), 4L70E (Level 4), 4L80E (Level 2, 3 and 4), 4L85E (Level 4).
Mopar – NAG 1, 545RFE, TorqueFlite Chrysler 727 (Level 2 and 4)
We have torque converters available for:
GM – Turbo TH200-R, 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, 700-R4;
Ford – 4R70 W, 4R75W, AODE; Chrysler 545RFE; CH350/400;
Mopar – NAG-1, and more.
Don’t forget to check out our YANK LT Power Adder, Pro Truck, Pro Thruster (PT), SS Series, and ZL1-2800 converters!
What sets us apart is our dedication to having one master technician handle the entire build process from start to finish. Whether you drive a Ford, GM, or Mopar vehicle, we have the expertise and technology to create a transmission that suits your needs.
At Gearstar, we ensure that every transmission is a masterpiece that surpasses industry standards.
Our master technicians bring decades of experience and a passion for perfection to every transmission!
Our High-Performance Transmissions: Dyno-Tested And Warranted
Before our transmissions reach you, they are dyno-tested for the equivalent of 100 miles to ensure that they offer the best performance metrics.
All our performance transmissions, remanufactured transmissions are warranted against failure—due to workmanship and/or parts used in the remanufacturing process—for 3 years or 36,000 miles, whichever comes first from the date of shipment.
Witness The Gearstar Difference
At Gearstar, we’re not just here to sell you a transmission; we’re here to support you throughout your ownership experience. We take pride in building lasting relationships with our customers.
In a world where shortcuts and compromises are all too common, Gearstar is a name you can count on!
Gearstar is more than just transmissions; it’s a commitment to perfection, a dedication to craftsmanship, and a promise of unrivaled quality.
Gearstar Proven
WATCH VIDEOGearstar Power
WATCH VIDEOWheelstanding Dump Truck! Stubby Bob’s Comeback - Roadkill Ep. 52
WATCH VIDEOWho do you trust with an automatic transmission when you are building this kind of a machine with this kind of power plant. For Corvette conspiracy it is an easy question to answer We trust Zack Farah of Gear Star performance transmissions because we need our transmissions to function perfectly and reliably every time.
Hello Zack, Thank you very much for the great job you did on my Marauder no more slipping between 1st and 2nd gear. it hits hard on the 2-3 shift and 1-2 is just insane I really like it the difference is unreal, the car has a Kenny Bell package on it and for the 1st time I feel we are really putting the power to the ground. I can cruise at 35MPH and punch it will just smoke the tires.
Zack, I just wanted to drop you a line to let you know that the transmission you built for my ’06 Silverado is unbelievable it shifts perfectly and works real nice. thank you for the great service.
Attn Zack Farah, I would like to thank you for the service I received at your shop. I had a problem with my C-4 and Mark & Larry were very helpful in solving the problem in a timely manner. I like doing business with a company where service is not a ‘BUZZ’ word. I will highly recommend “Gearstar” to anyone who wants to deal with a reliable shop. PS. I ran 10:55 at 128 MPH with a 1.45 60 FT Time Fast enough for a 71 year young grandfather!
I want to thank Gearstar for sending a technician over to our shop a couple of weeks ago to assist in connecting the kick down linkage on your 200R transmission. The technician was extremely helpful in getting this car on its feet. His professionalism, attitude, and knowledge made it all possible. We look forward to our continued growing relationship with Gearstar and certainly wish you guys the best moving forward.
Gearstar provided me with one of the best automotive purchases I’ve ever made. A custom built 4L80E transmission for my 800 HP street / Strip Camaro. Highly recommended if you want the best.