Originally Posted by Arn0

My previous message was a bit confusing! The picture shows a RC12L4 left hub to compare with the IRS! The question is related to the other side of the axle, the right hub! RC12L4 Manual shows 2 bearings and on the RC12L3, there is one... !! So my question!

Frank.. (better Mr Calandra???), the link for the large resolution picture wasn't updated!
Why the diff plates get this "strange" inside shape? D ring allows the lock in rotation the diff plate/ring, here I don't understand!!
Other than silver, red and blue, is there any other color? Just curiosity!