I got a pm asking about locking the ball differential for the Hpi Racing Sprint 2 Sport Drift using this part # 88073 and im not 100% sure on this and I want to give the correct information but I thought the whole idea behind the ball differential was that that part acts like a locked rear diff without having to be locked up like say the original differential has to be with like jb weld or hot glue so I dont think you need to lock the ball differential right?

I just tightened my ball diffs all the way down(not horsed down super tight). I don't think you get enough traction to have to worry about it after that. I think the tires will break traction before the diff will work. Or take the balls out and use traxxas slipper pegs in there place.

anyone lock they rear ball diff with the hpi diff locker?

<font size="2" color="#00265e">leadfootdriver</font> thx for all your help .....