yeah, I'm planning on keeping the sotck arms, but i was thinking baout making some kind of diff case brace accross the wo that the arms pull on eachother not just on the plastic case. I've already replaced the bearings.

Boot, Idk if you still have the pieces for your diff cases bit I borke a few like that and use a ton of crazy glue or plastic epoxy to put it abck together and it holds just fine. Just so you dont have to buy diff case halves all the time. Aluminum diff cases would look sweet and perfor well as long as you kept plastic arms. With metal arms and metal diff cases you would probabaly bend the chassis. I've got the alum steering link on order too, I hear it helps tighten up the steering.
How do you like that new era skid plate? I was thinking about it but never did buy it.

I've been looking for a JT chassis for a while. Wish I would a bought one when i first got this thing but 130$ US seemed steep. But with this extended upper chassis plate it should be strong enough.