Broken part on my 1/10 Quanum Skull Crusher Monster Truck Brushless 2WD

Hello,
my son just used for the first time its tenth Quanum Skull Crusher Monster Truck Brushless 2WD and a little shock against a pole broke a suspension forehead and a front shock plastic. Is this normal? I find these pieces very wobbly! I am very disappointed by this fragility that seems difficult to understand for an off road car.
I can not find replacement parts in 1/10 Quanum Skull Crusher Parts.
Can these parts are the same as those of 1/10 Brushless 2WD Desert Racing Buggy (Lower Suspension Arm Set L / R Front & L / R Rear (4pcs / bag) - A2030, A2031, A2032 and A2033) or Suspension Arm Set L / R Front (2pcs / bag) - 1/10 Brushless 2WD Desert Racing Buggy - A2032 and A2033 and Suspension Arm Set L / R Rear (2pcs / bag) - 1/10 Brushless 2WD Desert Racing Buggy - A2032 and A2033) ?

Sorry for my English but I use google translate ...
Thank you in advance for your quick response, because the car is currently unusable.