It allows the use of any servo for aftermarket electrical gear instead of the limited stock units. Was that not obvious?
Ok, here is the link to the completed install:
http://www.youtube.com/watch?v=n8JehQLrpK0
I updated the gallery with the latest, finished pictures too. I used a JR 241 Sub Micro with 17oz at 4.8V. It works extremely good!!
The items I used were two plastic servo mounts, any kind are fine as long as they are not too tall, the 241 JR servo, a Duratrax ESC1000 (the ESC5000 has more output but is too punchy and not good at slow speed) and a 3 channel Futaba receiver. Both the ESC and the RX were removed from their cases and wrapped with elec tape to reduce the area needed. The RX lays on the chassis behind the servo. Bend the plug pins and crystal holder (with a solder iron) enough for it to fit under the servo some and allow the ESC to rest flush on top. I'll shoot a pic of mine all done soon, finishing touches on the antenna now.