[BrianG]

Well, I got some parts on the way. Most of them are Traxxas parts simply because they're cheaper and it's easy to find replacments:

- Summit 2-speed transmission with 68T spur
- RDLogics Revo CVDs (more on why later)
- Trx 17mm hubs
- Revo pushrods/steering links
- Revo knuckles

Other parts I'm going to use (which I already have)
- Center diff from Hyper8 buggy (had a couple extra for some reason).
- Center diff mount from the Hyper8 buggy
- Medusa 36-80-2000 motor
- MMPro with CCBEC hardwired in for extra BEC current.
- 4s 5Ah lipo

I plan to attach a 16-18T Mod1 6mm bore pinion (have to talk to Mike about a 6mm bore version) directly to the output of the Summit tranny. That will mesh directly with the 46T spur on the CD. When using a 16T motor pinion, this gives me ~55:1 reduction ratio. This arrangement allows everything to be compact and bolt up nicely without having to use a center shaft of some kind.

I got the RDLogics CVDs because the output of the CD has drive cups, and these are the only ones I could find that had dogbones on the end. I just won't use the drive cups the kit comes with.

I'll obviously have to create a simple chassis to tie everything together, and then work out a steering setup. I just hope the Revo knuckles are strong enough to support the weight. I chose them because I can simply run the pillow ball bolts through a vertical metal "strap", which will hook directly to the wagon.

I want to spend no more than ~$150 on this project. I'm already at ~$120, but at least I have just about all the parts I need. I doubt I'll get a strong enough servo for $30, so I am thinking about robbing the servo controller from a crappy servo, adding an external H-bridge driver, and an external geared motor I have laying around. Just have to find a good way to provide feedback from the motor's output via a pot to the servo controller.

Once everything arrives, I can start going actual assembly.