TH400

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Transmission Accomplished - Four options to increase the capacity of a Pontiac Turbo 400

Press June 16th, 2025 2 minute read

In the early days of the automotive industry, manual-shift transmissions were the norm. Operating a clutch pedal and a shift lever peering up from the...

Building the Bombproof TH400

Press June 16th, 2025 7 minute read

I admit it. I’m a little hard on transmissions, and if you read this magazine often enough, you might have already noticed. In fact, it’s so bad that I...

Rebuilding a Faster, Better TH400 in Almost Every Way

GEARSTAR PERFORMANCE October 21st, 2022 5 minute read

Rebuilding a transmission, such as the TH400, is not relatively as easy as changing your car filter or making an oil change. It is a challenge that will take a...

Overview of the GM TH400 Transmission

GEARSTAR PERFORMANCE February 10th, 2020 6 minute read

 The TH400 or Turbo 400 is a good transmission that was used in several cars years ago. This popular transmission was found in GM’s cars, as well as,...

Pontiac Turbo 400 Upgrades Gearstar Performance Transmissions

Gearstar Pro October 11th, 2016 1 minute read

Pontiac Turbo 400 upgrades GearStar Performance Transmissions. Located in Akron, Ohio, Gearstar specializes in providing custom-built, high-performance...

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