the front engine mount on the 216 has 7/16-20 x 2 the outside bolts in the mounting assembly are 3/8-24 x 2 is it best to go with the fine or course to replace - i see a Denny Graham write up and it states course thread @ 14 - trying to match the black oxide but should i switch from the fine to course and replace with new castle on both or nyloc nut? thanks for your advise, Lynn
