Gearstar Performance

Custom Transmission Build Team




Gearstar Performance Transmissions has been hand-building high-performance automatics in Akron, Ohio since 1996. Every unit is assembled start to finish by one builder, matched to the customer's engine, gearing and intended use, then dyno-tested before it ships. The build team writes here about transmission specs, install procedures, torque converter matching and what actually holds up behind real power.

Start Your Own Ford AOD Transmission Rebuild

Start Your Own Ford AOD Transmission Rebuild

Gearstar Performance 8 minute read

The oil crisis in 1973 brought a very harsh reality for motorists in America: fuel was going to become more expensive. And the only way out is to...

Overview of the Performance 700R4 Transmission

Overview of the Performance 700R4 Transmission

Gearstar Performance 6 minute read

Having a piece of basic knowledge on how to service your 700R4 transmission is not a bad idea, so coming down here to read the step-by-step approach on how...

How to Modify Your Ford AOD Transmission to Perfection

How to Modify Your Ford AOD Transmission to Perfection

Gearstar Performance 5 minute read

Ford’s Automatic Overdrive (AOD) was firstly used in 1980 before it became an overly electronic controlled transmission AOD-E in 1991. There are simple, yet...

3 Types of Ford AOD Transmission Identification

3 Types of Ford AOD Transmission Identification

Gearstar Performance 6 minute read

The oil crisis of 1973 was a jarring reality for many American motorists as fuel became more expensive than it used to be. The only way out of this...

The Benefits of a High Performance Transmission

The Benefits of a High Performance Transmission

Gearstar Performance 6 minute read

Do you want to upgrade to a high-performance transmission? Most car owners know that the primary role of a vehicle's transmission is to apply power from...

What is an Aftermarket Torque Converter?

What is an Aftermarket Torque Converter?

Gearstar Performance 6 minute read

What is an aftermarket torque converter? The torque converter is a vital component of many auto transmission vehicles. It plays a crucial role in starting...