Here is your answer, its extremely strong

http://www.savage-central.com/module...wtopic&t=94304

Also note that when your jumping which im sure you are if your breaking a BP pinion, dont land with the throttle mashed down. Thats how they break
The 2011 savage X bp diff is very strong as well. My ERCM picco gives those ring and pinions hell. I also run 6s on my flux with zero issues now.