Sounds like you're mechanically minded (going by job), so if you can get hold of some calipers, it should'nt be hard too work out which size to go for.
soon as it gets here i'll measure up shame im off to turkey tomorrow for 19 days so even when it gets here i cant play
soon as it gets here i'll measure up shame im off to turkey tomorrow for 19 days so even when it gets here i cant play