mrmoto58
03-23-2007, 11:34 AM
Hi new on this site and find it great .I have an older 50hp merc has red stips on it .ower unit was takin off by a rock . got another lower unit but was told that my motor has a course spline and the lower unit i have has a fine .does any one no the year of merc i should look for that would have a course spline.Thanks Ted::?: