QX56 V8-5.6L (VK56DE) (2004)
4.
Remove the plastic nuts in the rear opening as follows:
a.
Use a 25/64 drill bit.
b.
Cut a piece of rubber hose to cover most of the drill bit.
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This will be your "stopper" so you won't drill too deep.
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Only about 1/2 inch of the drill bit should stick out the top.
C.
Use the covered drill bit to remove the top part of the plastic nuts.