I had a rear axle nut come loose at PIRC at my last race of the 2022 CCS season. I have been racing and doing my own prep for many years and have never had an axle nut loosen up before. I use the geared leverage tool that attaches to the rear lug bolts and I torque the nut to 270ftlbs. I am running front & rear discs and CCS spec Yokohama A-52 tires. I referred to the factory-issued "VW Without Guesswork" booklet and the stated axle nut torque is only 217ft.lbs.
My question is - would a higher torque number help cure this situation and if so, could that possibly cause any rear axle/bearing problems?