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.
Dyno Testing for Top-Notch Performance
Have you ever considered dyno testing your engine? If you are reading this, it simply means you want to learn more about how to dyno test an engine. Dyno...
Yes, A Transmission Fluid Change is Needed (And Here's Why)
If you notice your transmission slipping or have difficulty shifting gears, it may be time for a transmission fluid change. Over time, the fluid can...
8 Basic Automatic Transmission Maintenance Tips
Transmission maintenance is important because it can help prevent future car problems, extend the life of your transmission, and improve your vehicle's overall...
10 Signs of a Bad Transmission (And what to do)
One of the most disheartening things any car owner can hear is that you need a brand-new transmission. This is why detecting the signs of a bad...
4L60E Transmission Swap Tips and Tricks
If you have questions about a 4L60E transmission swap and wondering what's the best way to do so without any hitch, then this is your ultimate guide.The...
Overachieving Overdrive With a 700R4 Transmission Rebuild
A good 700R4 transmission rebuild will leave you with a ride that is more powerful, durable, and with firmer shifts.In terms of power, you can get over...