Rear Wheel bearing parts needed?

I need to replace a left REAR wheel bearing on my 06 prerunner besides the wheel bearing hub its self what other parts do i need? Both toyota and aamco said there is a part that has to be cut off but I dont know what it is

 

I thought you were having the dealer do it?

 

I spoke with a friend at aamco and he said he has the tools to do it so I'm buying the parts and disassembling the truck then he will press it off and on.

I had my parts department call toyota and got a parts list the bearing I will buy on rockauto.com the small parts I'll get from Toyota

 

Do you still have the parts list? Where did you get the bearing from?

 

I got a timkin bearing form rockauto.com the rest I called toyota said I'm doing a rear wheel bearing and need everything related except the bearing.