Built to Hold
Build guides, transmission tech, and install notes from the Gearstar shop floor. Every unit we ship is assembled by one builder, matched to your combo, and dyno-tested before it goes out the door. This is where we show the work: what holds, what grenades, and how to spec it right the first time.
GM 700-R4 and 200-4R Transmission Installation Instructions
PLEASE FEEL FREE TO CALL US ON OUR TECH LINE AT (330) 434-2757 BETWEEN 8:00 AM AND 5:00 PM EST IF YOU HAVE ANY QUESTIONS.Failure to read and follow these...
Ford AOD Transmission Installation Instructions
PLEASE FEEL FREE TO CALL US ON OUR TECH LINE AT (330) 434-2757 BETWEEN 8:00 AM AND 5:00 PM EST IF YOU HAVE ANY QUESTIONS. Please read instructions...
Mopar NAG1 Transmission Installation Instructions
PLEASE FEEL FREE TO CALL US ON OUR TECH LINE AT (330) 434-2757 BETWEEN 8:00 AM AND 5:00 PM EST IF YOU HAVE ANY QUESTIONS. Please read instructions...
Ford 4R70W and 4R75W Installation Instructions
PLEASE FEEL FREE TO CALL US ON OUR TECH LINE AT (330) 434-2757 BETWEEN 8:00 AM AND 5:00 PM EST IF YOU HAVE ANY QUESTIONS. Please read instructions...
All You Need to Know About Performance Transmission Parts
The transmission is one of the most critical components of a vehicle's powertrain. It transmits power from the engine to the wheels, allowing the vehicle...
The ABCs of a 4 Speed Automatic Transmission
A transmission exists because an engine only makes useful power inside a narrow RPM band, and a car needs to move from a stop to highway speed. The...