I bought a used Emaxx a couple of yrs ago and its taken a bunch to get it in shape. I replaced bulks, diffs, drive axles and strg knuckles with stuff from a 3.3 and the diffs from a 16.8. Even off Ebay, that cost about half again what I paid for it used. Yours sounds like it has otehr probs as well. I would look for another, a 16.8 roller or rtr if your electronics are not too good.

At least that way, the upgrades you wind up making are improving things instead of fixing probs. I have an older G2R and the revo front end - they're not real good to bash - arms break too easy - have to buy RPM, and I've even broken a few if them.