RC Nitro pulling to one side help needed

[The Devils Bravo]

Hi Guys,

I have got a RC Nitro car and due to my spaky cousin (sorry Gav but it was your fault!! ) side swiping me when we was racing our cars I now have a slight pull to the left ( the side he hit me ) any ideas what could have caused this.. I have been solt its a bent drive shaft which i have checked and yes its marginally bent but i cant see how this would effect it?

Also My cousins car the stering servo now makes a nasty clicking sound when turning left or right.. we have taken it to bits and all the cogs look fine again any ideas?

The impact was at about 45 - 50mph but nothing else looks damaged?