PPS010 Grublock Motor Mount for Traxxas Sledge (Mount Only)This is the PPS Grublock motor mount kit for the Traxxas Sledge! This is not your typical motor mount. It moves your motor from the front of the truck to the back and it gives you the freedom to mount so many more motor sizes in your Traxxas Sledge. Not only that but you get the fine adjusting and gear mesh locking action of the PPS GRUBLOCK System! The Sledge Grublock motor mount is compatible with 25mm AND 30mm bolt spacing motors such as the Castle