So called Granny first gear trannys are those heavy cast iron units,(forgot the name) can't speed shift those & when in first gear,you can basically let the clutch out w/out giving any throttle to move your vehicle,they came in trucks.
Basically, you never use first gear on those trannnys unless you are carrying a heavy load or are trying to pull out a tree stump ;-)
I thought M20's were close ratio trannys?. It's been a while since I played w/those transmissions.
IIRC the M21 came in close or wide ratios.
MBHD
