Granny Trannies Guide

: 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

These transmissions were staples in 20th-century pickup trucks and are now highly sought after for off-road Jeep conversions: Muncie SM420 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