If you're a racer, I have some parts that will beef up your xxx-4 buggy without adding a whole lot of weight. Taking the rear steel outdrive out, and putting in some molded ones using my aluminum sleeves will actually reduce the weight and cut down on rotational mass. Check them out, and let me know if you're interested!
Sleeves:
http://www.putfile.com/pic.php?img=6439867
Screw Kit:
http://www.putfile.com/pic.php?img=6439866
Also, here is a link to what I have posted on the "For Sale" forum:
http://rctech.net/forum/showthread.php?t=183874
Thanks,
Derrick Hochgesang