Shoe Goo the mounts and servo... just mock mount the servo in its place with the mounts... take the servo out of the car with the mounts attached to the servo and ready to go in place... add a dime sized glob of shoe goo from the underside of the servo between each mount and the side of the servo casing, making sure there is some that will come in contact with the chassis when you add the servo to the car... screw it in place and let it dry till the next day. The idea is the Shoe Goo will harden and not only hold the servo to the chassis, but keep the mounts from wiggling loose in any direction through normal use. Removal, if neccessary, is quite simple... take both screws out of the bottom of the chassis and use a flatblade screwdriver to carefully remove the servo from the chassis. Its ALOT cheaper than an IRS transponder/servo mount.