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Discussion Starter · #1 ·
I have a 308gt4 that has had its Gearbox / differential filler plug 'butchered' in a previous life. The plug is a 23mm bolt not the allen key type and it won't come off. All that is left of the plug is two flats now at 22 mm soon to be 21mm!!!

My plan is to have one more go at reducing it to 21mm and try again or to drill the middle of the plug and tap the thread. Dow anyone have any suggestion that may offer me an alternative?

Thanks in anticipation.
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