I am looking to convert my 1/16 scale Grave digger over to a rally. I already have a Stampede 4x4 vxl with a plethora of upgrades and want to bash with the digger at times and and do some course racing with a rally.

Besides converting to 4x4
7078 Differential Assembly
7079 Ring and Pinion Gear
7056 Center Driveshafts (for the front shaft)
7057 Differential/Transmission Yolks
7051 Driveshaft Assembly (2 for the left and right side)

what else would be required?