Automatic Transmission - 4L60E converter lockup

I have installed a 4L60 into an A body Chevrolet and do not have a connection to the speedometer, so I am looking for someone who has the diagram/instructions to put the lockup on a switch. $4 gas is killing me!!

It needs to run through the brake switch to work properly. Search, sallee 4l60, they have the instructions etc.