Ford transit 1994 how to change lock cylinders?

i am wanting to change all the locks on my van but dont know how easy or possible it is i have changed ignition already and didnt find it too dificult but dont want to end up with no clue and doing damage to locks any help appreciated|||If you%26#039;ve already changed the ignition lock your more then capable of changing the door ones. on a 1994 transit its all pretty straight forward. there%26#039;s no fancy gadgits or gizmos to fiddle with and you don%26#039;t need any special tools. Its as simple as removing the door card, and taking the back of the barrel fixings off and fitting the new one in. The only damage your likely to do is to the tacky fittings pulling off the door card, as the pop plastic fittings are normally brittle and you%26#039;ll be lucky if over half come off without breaking. but these are pence to replace, so no big deal.