ORIGINAL: JTuepker1
Had the stock servo do that to me on my backdraft. Now running a 3303 futaba metal gear servo. Solid now.
the servo i put in, is a high-torque metal geared servo. and the servo arm moves all the way, and so does the top linkage. i think the bell crank has a servo saver in it that might be loose or something. will have to run the truck some more to figure it out, as the problem never occurs when bench testing(like that sound your real car makes that magically goes away when you take it to the mechanic!)