The outdrives to the driveshafts do wobble a bit because they are running through a rubber seal, no problem with that.
However if the center outdrives are wobbling I would check the two bearings on the propeller shaft/gear, if these feel anything like rough change them immediately as they will eventually wear so much they will damage the main ring gear.
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MAD MODELS
BRITISH NATIONAL 4WD VETERAN CHAMPION 2012
BRITISH NATIONAL SERIES 4WD VETERAN CHAMPION 2013
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