hb pro diff?

[stampy]

ok started adding stuff up and found out that to use these gears i would need the gear set from mike 65 x2, a setup kit prolly 10 buxs, plus s&h then i would need a diff housing and 2 drive cups from ue 132 plus s&h, so ad it all up and you get 272 plus s&h. what im getting at here is the 8spyder kit from ue is 260, is the hb gear set really worth that? would the hb gear set be stronger than a ue 8spyder set? i know there gears are hardened and i know how strong stuff gets when you harden it but are all the gears in the hb gear set hardend?