: Renowned for having one of the lowest first gears (7.05:1) and the shortest case length, making it ideal for short-wheelbase vehicles. Muncie SM465
: Another legendary "granny" box favored by Ford and Dodge enthusiasts for its 6.68:1 first gear. Other Contexts The phrase occasionally appears in other niche areas: granny trannies
: Historically used as slang for small, low-fidelity transistor radios used to test how a studio mix might sound on a "cheap" home device. : Renowned for having one of the lowest first gears (7
These transmissions were staples in 20th-century pickup trucks and are now highly sought after for off-road Jeep conversions: Muncie SM420 granny trannies