Rebuilds & Upgrades
Upgrading a 4L70E Transmission
The 4L70E is one of several GM-produced electronic automatic transmissions developed as a successor to the Turbo-Hydramatic line of transmissions, some...
Questions You Should Ask Before Upgrading Your Ride
There are many questions you should ask before upgrading your ride. It is important to consider what the vehicle will be used for and what you're looking...
Pontiac Turbo 400 Upgrades Gearstar Performance Transmissions
Pontiac Turbo 400 upgrades GearStar Performance Transmissions. Located in Akron, Ohio, Gearstar specializes in providing custom-built, high-performance...
Upgrading GM 4L70E Transmissions Via Gearstar
Gearstar performance transmissions are all custom. Building each transmission with to the specific needs of the customer is important to Gearstar. We're...