Yoke seal leak on 741 posi fixable?

shims set preload..."...tighten the (pinion) nut to 240 foot- pounds torque. Turn the tool several revolutions to permit the bearing rollers to seat. After the bearing rollers have been properly seated measure the bearing preload by rotating the tool with an inch-pound torque wrench. With the bearing lubricated with Mul- tipurpose Gear Lubricant, the correct preload specifi- cations are from 45 to 50 inch-pounds torque. If the bearing adjustment does not conform to specifications it will be necessary to change the adjustment by either a thicker or thinner pinion bearing spacer. If the preload is too great it will be necessary to install a thicker spacer and if the preload is not sufficient a thinner spacer will be necessary.." regarding pinion with bearing spacer rear end (741/742) from 1965 FSM

You can't set the preload with torque if they give you a torque setting to use (240 ft/lbs)...? That has to be set with a variable shim pack at 240 ft/lbs pinion nut torque. That's how I read it.