Direct Drive to Diff E Revo Build

[lincpimp]

I guess that I should do some mods to the old direct-to-diff redcat and see what it can do. Need to find a lower kv motor, most likely a 600-650 would do. That will allow me to put some taller tires on it and it will be more off-rad capable.

The main benefit I found was that there was so muck more room on the flat chassis with out the center diff/trans there. Batteries could be placed on either side of the chassis and the balance was great.

Any ideas on a good out runner with 600-650 kv that would run 5s well and have a 5mm shaft? Here is the info on the motor I am currently using, would like to keep the same diameter if possible:

Specifications:
-Rpm(Kv): 833Rpm/V
-Continuous Currect: 50A
-Max Currect: 70A
-Watt: 980W
-Max Eff: 98%
-Recommended Rotor Prop: 8 x 4 to 15 x 8
-Weight: 150g ( Motor Net Weight )
-Total Length: 78.2mm (include Front and Black Shaft)
-Motor Body Diameter: 37.1mm
-Shaft Diameter: 4.98mm(Front and Back)
-Shaft Length: 15.1mm (Front) and 14.2mm (Back)
-Recommended Input Voltage: 8 - 23 Volt