Granny Trannies -

: 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.

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

: 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) : The first gear ratio is exceptionally high (often around 6

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