If you are putting in another order from Tower, next time, get that TLT bearing set (20 5x11) from Tamiya.. it is $26, but it is no more expensive than if you buy DuraTrax ones.. (and you can use coupon..) Get a set of those and sit around as spares.. cause you know Tamiya always need them 5x11!!
5x8, get a set of 10 from Tower (Duratrax brand) for like $12 or so..
Not too bad, I guess..
Again, should just get one of those and put them in your parts bin..