ive been out of the rc game for a while but but getting back in im see a lot of cool shit! any way i have a juggernaut 2 that ive had for a while and im redoing suspension esc paint ect ect i want part that are hard to find or i dont know what i can use in place of it?

i want better drive shafts stock ones don't last long
i want solid differentials
i want heavier steering links

heres were im at so far