Thanks. I'm currently in Jacksonville, Florida and my trucks are in Needville, Texas. So I'm like 1000 miles away from them. When I get back I'll let yall know what I find out. I do think it has the plastic gear thingy on the outside of the servo. URCHobby sent me a new servo but I haven't had time to mess with it. I've got aluminum servo saver/bellcrank. This started happening when I put fuel line in the cups of the dogbones. ?????????