Thanks guys for the replies. I'm kinda leaning towards the C6 as I already have one in one of my truggy's and it will make maintenance easier as I can share connecting rods/bearings and such. I actually thinking about running the 48 spur/13 bell/ & MBX5T diff gears to give me serious punch. Might even be too much torque lol. I believe the 8's are still geared lower.