Its darn near imposable to adjust the Losi 5ive servo saver while its in your rig. Its hidden deep down and the spring tension is heavy. Along with this on almost every rig, it will loosen up as you drive.
Team FastEddy has addressed these issues with our Qwick adjust Servo Saver Nut and Jam Nut. Once installed simply use a screw driver to hold the nut and turn your wheels to tighten it down. Once its tightened up use the jam nut to hold it in place. (Included in the kit or sold separately)