I run the tekin rx8 with the tekin 4.5. The only thing i have done is ditched the radio tray due to the fact if you use that mount you will need to get an extension line for your servo to reach the receiver. There are only a few servos that come with a long enough wire to reach. I have run about 8 packs through my truck so far. I have crashed pretty hard a few times and nothing has broken yet.