hi clodbuster again yes once you set the slipper your are done you want it to slip a little to prevent damage to your gears in front and rear differential , especially if you have lots of jumps on the track , what i mean about the center diff , it has more gears in the center
diff . you adjust the silicone viscosity thicker weight oil from 8.000 wt to a 10,000 or heavier or to lighter weight to a 5, 000 wt this will help you with an over steer or under steer going into and out of turns ok . looking at the team associated b74 team kit manual , it comes with the slipper diff now ok , the center differential is optional kit now hope i helped mugey