[J.D.Hogg]

I have power to almost nothing in my truck. just installed an auto trans and cannot explain what has happened. When moving the wiring harness around the bellhousing I may have heard it arc, but if so what would this affect ?

 

[Blazin]

You have a big short somewhere - it's just a large process of elimination. First, I would carefully examine the harness where you were working and see if you can find any frayed or exposed wiring. If not, find out what is working, and volt test everything else.