FS is a strong car. Only things I've broken in 12 months of use are front shock towers. However I'd suggest you also get:
- Gear set - if you shim them right they won't break or wear & you'll still have a super free drive train, however it might take a few attempts to get the shimming right if you're new to gear transmissions
- Spur gear - sometimes you can get small stones stuck in it like any other 4WD car
- Front wishbones
- Front hubs & knuckle set
- Front inner wishbone pivot pins - sometimes they bend, or if you're very special, you manage to snap them in two places at once (you know who you are, and you still owe me a set
)