• 13 ½-in square outer Kelly with 7-in square inner Kelly x 75 ft with 45-ton lifting eye/AS-17 swivel & 7-in stub drilled 1 ¾-in diameter 2”-in & 6-in up to center
• Transmission: Dana-spicer full powershift 4-speed transmission with 16-in torque convertor
• Right angle gear box: force lubricated hypoid gear set
• Rotary table final drive: 6.63:1 ratio, oil bath lubricated super gear drive
• Theoretical performance:

Rotary torque (lb/ft)        Stall                Rotary RPM

1st Gear                               510,000         0-10

2nd Gear                               255,000         0-24

3rd Gear                               145,500         0-44

4th Gear                               83,000         0-78