I have a wcm k1e Grand national with a spektrum 3.0dx radio I was just woundering what you guys would suggest for servos.

i run hitec hs-5645mg servos works good and not real pricy

You might go to www.towerhobbies.com and under Radio acc. type "high torque servos". you don't have to buy from them but it will give you a list of what's available. I wouldn't choose anything less than 125 in-oz. at 6v. Personally I use Airtronics 94357 but they're at the minimum torque rate and I'm a minority. I think most use Hi-Tec or Futaba.

I use Futaba S3305 for steering, they are about $35 (each) and I prefer the Hitec HS-5745 (about $70) for throttle. The throttle servo does a ton of work and gets punished the most, the 5745 has a heat sink around it and that helps keep it cool on those long wide open runs.

SG