5 to 1 Lever, 518, 618, 47RH, 47RE, and 727 transmissions. The stock second gear band apply lever has a 3.8 to 1 ratio
Whereas this lever has a 5 to 1 ratio giving an extra 31% torque holding capacity in second gear. Placing one pound of force on the tip of the apply lever causes 5 pounds of force on the band. These are Mopar OEM levers.