Just like the title says. I am looking to find out if the SEIC wire is on all the 2011+ F-550 cab & chassis or does it only exist when you order the truck with the "tranny PTO provision" option?

 

It's on everything, even the pickups. PTO_REQ is what you're talking about I think.

 

Yeah i just checked and your right on that name. Thanks.

 

Here's a link to the 2012 Body Builder Layout book. It contains wiring info that applies to F250 through F550. The PTO stuff is built in to all of them. You'll only need the electrical section for this, but there is a gold mine of info in the other sections.

https://www.fleet.ford.com/truckbbas...2/maintoc.html