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Hey mate, cheers for your video. That little rubber clip on the metal rod would've been a pain in the arse if I hadn't already watched your tutorial.i knew that would of been the one that you had missed out on, nah it shouldnt be a problem seeing as you are taking them off soon, i am not sure what you are trying to explain by the lock part. BUT i did a DIY video for removing the outer door handles to install chrome door handles. here is the link. YouTube - How to Remove VT/VZ Door Handles‏ any Q's, give me a shout
sorry to bump an old thread,How To Remove Door Card & Speaker Grill VT-VX Commodore *Detailed*
Ok so now the door cards off. Remember this bracket as pictured below because you will need to match it up with the door card clip when re-installing.