s5ln, what works for one, might not work the next guy.

I can tell you, from at least 2 decades of manufacturing experience, these are NOT cheap castings, these are cnc machined parts that have been media blasted to create a more consistant, satin finish. This is a very common process to enhance anodizing and finish coatings.

When I installed my bearings into hubs I did notice just a touch of room, Using blue locktite around the outside of the bearing, solved that problem ever since.

I can't comment on the bell cranks, I choose to keep them plastic to protect the Hitec hs5955 servo I use. But I am using the center link from New Era to stablize the side to side connection.

The most important thing to remember is I have been bashing the hell out of my truck testing a delrine cage I am developing, The cage has failed but after several ugly landings on the ends of the suspension I have yet to break any of the arms, knuckles or hubs, I did however bend one of the upper arms and one of the lower hinge pins on the same wheel after a huge landing on that side rear, standing straight up. That was from about 18-20 feet high!!

I have broke the plastics from lesser altitude.

So, the aluminum parts work very well for a hardcore basher, but not you! thats kool

BTW I will give you a fair price for that "junk" if you dont want them