Hi

I tried to use a square 1/2 drive to loosen my diff sump plug. I actually broke the 75mm extension bar i was using

So I did this and it worked great.
I found an old hex driver I once bought for changing the head on my VL commodore. I haven't used it in over 15 years. I ground it down until it was about 13.5mm.
14mm hex driver.JPG
And this fit nice and snug in the square hole.
sump lug.jpg

This may be of some value to others if they have a unused hex driver or a 1/2 inch drive allen key.

Cheers
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