well I tore my diffs back down and ca'd the ring gear screws. As to a servo, I mentioned I had replaced it but not which brand. For 23 bucks Ive had great success with the solar d722 with an aluminum arm. Greatly improved steering and can now hold a line goin around a corner. Some people just zip tie the stock saver but I say get rid of it.And to Jwsewell, those links look awesome, thats gonna be on my to do list. after that, some washers here and there, power upgrade from the tazer brushless and some aluminum hex's and larger nylocks.