Hi,
Could someone tell me what size the square gearbox drain plug is on a 1990 k10? I have tried a 11mm but it was to big as was a 1/2" drive, I also tried a 3/8" drive but that was to small and a 10mm hex key, this fit tight but just slipped when i turned it. I think it is a 10mm square but i carnt find that size anywhere? Any help welcome........mcd.
Could someone tell me what size the square gearbox drain plug is on a 1990 k10? I have tried a 11mm but it was to big as was a 1/2" drive, I also tried a 3/8" drive but that was to small and a 10mm hex key, this fit tight but just slipped when i turned it. I think it is a 10mm square but i carnt find that size anywhere? Any help welcome........mcd.
