The part you need is two of these: TKR5570-17. You just swap the hubs then add the adapters. I tried the same thing except i added lightweight outdrives and diff couplers all around as well as a lightweight chassis, center dogbone, and motor mounts.

I ran it with a pro4 4000kv on 2s and a t8 1900kv on 4s and it was great. Next step would have been the pro4hd on a small 4s but i would have had to buy both of those. Maybe i'll try it at a later date.

I feel that a 540 and maybe a 550 motor would make a lot more sense in this setup. I just don't know how other racers in a 1/8 class would feel about running a super light buggy where i race.

I did find that the geometry is off from normal 1/8 primarily the steering since the wheel turns more to the inside of the car. I increased ackerman to make up for that which helped. The car had tons of lateral traction. I think with all that lightening i could have changed a lot more before converting back to SCT width/wheels.