Yeah i know but when i was driving the oil flew from the engine back all over the plugs when i de-greased them the amount oil and dirt coming out from the plugs was amazing!

but who would've thought that was the problem aye?

This may be helpful for others with gearbox troubles?

Hey thanks heaps Lucas - i was having simular probs with my ef 5L- funny gear canges and going back to 2nd at 80K - head down bum up this arvo and cleaned my plugs on the side of the box so hopefully problem solved - thanks for reporting the fix mate

no worries mate, hope it helps.