i got it figured at the least i wanna get a scorp1 540 diff, altho i had a radio shack blue shark by nikko as a kid that would walk the dog on the bandits and eliminators by tyco as a kid, if i cud find that diff id go with it too, but id rather find a suitable brushless capeable diff, since i did the bandit....in comparison...i think these old nikko based rc has more potential for reliable hobby grade mods....