do i need to keep the front block to do this and where can i get a kit for it it is a post 2k cocker cant remember the model i.e carnivior, orracle etc etc i have the front pnue's i wanna swap for a kit from what i remember they are all belsales what can i get for this no pics as camera is knackered(beer+cammera= fooked) cheers for the help