here is a link i found on the internet... It was written by DaveMan of f150Online... all the credit is his, and the instructions are great i used them to do my own truck and it took me only about an hour to get it perfect and i have no problems at all

Click this link and there will be his directory page and just click on torsion bar adjustments
http://home.sc.rr.com/davemanspage/

 

How about a link that works?

 

Couldnt link directly so try this one?

 

i would make sure you get a front end alignment after you alter the bars. otherwise you will get unusual wear on your tires.
just my 2 cents.