Originally Posted by
chevenstein
On the automatic, mechanically why can't you put the transmission in gear when the PTO is engaged (do you do something like lock the TC up when the PTO is in?)?
I'm not sure on the 4R100. I never studied how the PTO worked on that trans. I think they used a combination of clutches to power it that precludes driving the truck.
Originally Posted by
chevenstein
Also, how do you stop the gear that the PTO box meshes with to engage the PTO clutch (ie: there's no clutch for the transmission, so how do you stop the assembly from turning)?
To disengage it the PCM disengages the clutch that is powering the PTO. Automatics have clutches, just no clutch pedals.