I have a 95 Wrangler and when shifting into 3rd with the clutch to the floor I hear and feel a slight grid. When I am in fifth gear and I let up on the gas the transmission chatters, almost like it is slipping or something. These problems appeared out of the blue. Does anyone have any ideas what it could be? I have heard I may have a bad synchronizer ring which handles 3rd/4th/5th gear transistions - I can understand that having to do with the random grinding when shifting into 3rd gear but would that account for the chatter in 5th when I get off of the gas? Any help would be greatly appreciated...thanks