MikeyH Elite Devon Sep 6, 2026 #1 Hi all, my manual 5 speed gearbox has 17mm bolts for filling and drain. Is this normal, every search seems to show 8mm hex bolts? Does this mean they have either an aluminium washer or a rubber ‘O’ ring. Thank you in advance, Mike.
Hi all, my manual 5 speed gearbox has 17mm bolts for filling and drain. Is this normal, every search seems to show 8mm hex bolts? Does this mean they have either an aluminium washer or a rubber ‘O’ ring. Thank you in advance, Mike.