Curious, on 2 things:

1) is this part TCS legal for the TT02/GT Pro class:
https://www.tamiyausa.com/shop/optio...ft-assembly-2/

2) Will this work w/ the TT02 "rr" and/or oil filled diff outdrives?
Tamiya says you need a specific outdrive to use their universal joints, I am assuming this is because the standard outdrives are too short. The oil diff' outdrives are a bit different than the gear diff outdrives ...so just wanted to have some clarity on this. thanks.