The two-speed Powerglide transmission was GM's mainstream automatic for ages. In the mid-1960s, GM developed two "next-generation" three-speed automatics. The Turbo-Hydramatic 400, or Turbo 400 ...

The Turbo 350 (top) and the Turbo 400 (bottom) are the quintessential GM automatic transmissions. Both are three-speeds, but the Turbo 400 is physically larger and designed more for the torque ...

By 1990, the 700-R4 became a popular swap for the classic Turbo 350. That same year, the 700-R4 became known as the 4L60, the same transmission, but with a new designation.

AThese three brackets sold by Gale Banks Engineering attach the stock '82 GM F-car torque arm to standard Turbo 350 automatic transmissions.