you can buy the 1/8 scale adapters of http://www.neweramodels.com/cgi-bin/item.cgi?session_id=egvuuihiwrdickmogbsfknvmywptlsnw&part_id=5
I'm not sure if they fit other stadium trucks because they are listed under the rc10gt section. I'm not sure how these would do on low end as for top end I'm sure it'll haul some ass because I have put 2.2's onto my tamiya tlo1 and it increased top speed by at least 5m.p.h (that's a rough estimate)
Really I didn't know that the rc10gt was a stadium truck
what I meant was I didn't know if the rustler or any other ST had different size axles or you know.