Trannies - Granny

: A later, slightly larger version commonly found in GM trucks from the late 60s through the early 90s. BorgWarner T18/T19

: The first gear ratio is exceptionally high (often around 6.5:1 or 7.0:1), providing immense torque for starting heavy loads or crawling over obstacles.

: The term has appeared in music titles, such as the 2015 EP "Attack Of The Granny Trannies" by Iron Octomoms. ATTACK OF THE GRANNY TRANNIES (TAHRC-075) granny trannies

: 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:

These transmissions were staples in 20th-century pickup trucks and are now highly sought after for off-road Jeep conversions: Muncie SM420 : A later, slightly larger version commonly found

ATTACK OF THE GRANNY TRANNIES (TAHRC-075) | IRON OCTOMOMS | THIS AINT HEAVEN RECORDING CONCERN. this aint heaven recording concern gm sm465 transmission to jeep 4.0 - Comanche Club Forums

: 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 ATTACK OF THE GRANNY TRANNIES (TAHRC-075) : Another

: Heavy-duty gearboxes frequently used in Ford and International Harvester trucks. New Process 435 (NP435)