A 5-speed Direct is just like the SM420...High Gear = 1:1 ratio, the 5-speed just has one more gear ratio in between Low and Direct which is helpful when moving heavy loads.
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD