Well, drilling the hole is what you do when you find the lens is full of water after a rain. You drill a 1/8" hole at the bottom of the water. The reason the lens filled up is the weld between it and the black plastic is incomplete - where you can't reach it, or like you know about, the lens has a crack in it. This is a low-tech approach to avoiding a new replacement lamp, used by lots of us brick owners.
Wiring around the pesky circuit board is pretty low-tech too. Depending on how you do it, and there are many methods, you will trade serviceability for reliability. I would choose reliability (of the lighting) for my kids.
It's hard to get context in these worm's-eye views, but if you've been examining your circuit board intermittents, you'll have the perspective.


Getting around the problem just means eliminating the disconnectable contacts - meaning those between the lamp socket and circuit board, and between the harness connector and circuit board.
Tony Hoffman has some pics showing one rewiring that I like, because it preserves the ability to take the tail lamp assembly completely out of the car, but you would need his custom board: http://cleanflametrap.com/tony/index.htm
Here's a pic of how I used Tony's board: Sorry - link limit encountered.
If that board isn't available, you'd just wire directly to the harness.
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Art Benstein near Baltimore
If speed counted, rabbits would rule the world.
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