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The bones you linked should fit your cups. Your problem is going to be the front shaft. You can use a plastic front shaft, but your going to either have to use the 4909 FOC or cut the output you have now. All of the BB chassis were made before they came out with the grey trany, and long before...

The BB chassis out there were made before Traxxas came out withe the grey Revo spec trany, the 4907 trans needs to be modded to work on the BB chassis, as pulled the brake assembly sticks out to far, so you need either UE/RCM drive cups and cut the front of the output shaft down to use the brake...

UE Thunder BB chassis. http://www.ebay.com/itm/UE-Thunder-chassis-for-T-maxx-Traxxas-E-maxx-Supermaxx-/311378098631?pt=LH_DefaultDomain_0&hash=item487f94b9c7 Throttle servo mounts for it...

What you need to do is buy a new crank(#38238) for it, toss the integy clutch/flywheel, and put a regular BB flywheel/clutch combo on it. A Savage BB clutch/flywheel should work. What BB chassis are you going to use, the 3.3 4907 chassis is not going to work without a lot of hacking.