Great locking mechanism. Turns the E revo lexon body 1.0 into E revo 2.0. In order to have the complete body structure for the E revo 2.0 you will need for the roll cage: 8613. The list of all the parts for a total conversion: 8617, 8615, 8614, and 8613.Warning about 8615The front locking mechanism it will catch but it is super tight for my comfort. You can use the front pegs. You will need to cut out the lock. Don’t use my yellow marks as a guide what I do is drill the four mounts then cut the body with an exacto knife. Then cut the key hole. Take off the the mount to put on the lock and assemble as to permanently mount.Complete 1.0 my opinion list if your converting to 2.0 body lock: 8613, 8615, 8617. My silver body shows that. No bows lays flat. Also, don’t drill and put in the four screws on 8613. Only drill those holes if you use 8614. That mounts to the body. My recommendation is still use the front pegs for now. My brother in-law has a 3D printer and I’m asking them to print a new front locking mount. We’ll see how it works.