am assuming by I boarding you are saying in-boarding or rather
moving the links farther inboard at the chassis.
Having driveshaft issues like crazy with this, the grub screws keep slipping off so i made some indent in the output shafts seems to be holding up better also put a 27t motor in it and man does she move also had to install a axial wraith stock steering servo because the redcat one took a shit maybe too much water idk but the axial one works good
How many cells are you running? I'm running a 27T on 2s and never had to touch the drive shafts.