core parts are wrong in manual

[keenbutkrap]

i recently bought a core ready to run very happy with it i thought about getting some just in case spares for those moments when walls jump in your way
the part numbers in the manual all seem to be mad rat front and rear arms driveshafts all listed as mad rad or monkey
the correct parts are all approx 10mm wider each arm what parts should i be looking for it looks like i might have to bin the car if i break a £2 part
any help appreciated