Will be changing fluid soon for the first time. Looked in the shop manual and said that need to remove the bottom bolt of the PTO cover. Does this work? Just how much of a mess will I have in the driveway doing it this way? Will have a pan underneath this but would be nice to know if sometype of covering would be good to have just in case. Once the fluid is drained should the cover be removed and the insides inspected? Is there a modification that can be done so that the bolt does not need to be removed in the future? When reinstall the bolt the shop manual states to apply thread sealant. Is there a brand that works best?