just put grandsons together had lots of fun with servos you nead to be good to get it right or arse i do not now about plastic diffs old ones lasted 4 ever if it ant broke dont fix it also new clutch is abit funey will every one have 2 bye new pinion tool/ was a bit upset about using pliers 2 fix as old ones donot fit but car ran well in drive way i have had mugen sinse mtx2 but never put one to gether i have nrver seen so many pieces at 63 it was lots off fun greg
when will they option metal diff gears or dose some thing fit frends have tried xray