Need to buy a wiper motor and module. Where from?

[Easy Ed]

Try GM Parts Direct at http://www.gmpartsdirect.com/ ????
Go to the "catalog" tab on the home page, agree to "terms and conditions" in the next window, enter truck info and go to the "Windshield" section then be prepared for sticker shock....Wiper Motor $217.21 Module $156.78 for a 03-07 model year.

Edit, oops, just seen you are in the UK, don't know if they will ship, sorry if not.

Ed