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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.

HGM CompuShift CSII Controller

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COMPUSHIFT II is the latest generation transmission control system from HGM Automotive Electronics, Inc. COMPUSHIFT II operates automatic shifting, paddle...

GM 700-R4 and 200-4R Transmission Installation Instructions

6 minute read

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...

GM 700-R4 and 200-4R Transmission Installation Instructions

Press 6 minute read

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

Press 5 minute read

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

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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...

An Overview of The Different Levels of An Upgraded Transmission

An Overview of The Different Levels of An Upgraded Transmission

Press 7 minute read

A high-performance transmission is essential to any vehicle designed to deliver top-notch performance. The transmission transfers power from the engine...

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