SPEEDSKI, yes I was thinking getting front end center, not the rear one. Last year I tryed front active diff in my previous truck Xray xt8, and it worked great-but the xray diffs are much cheaper, so I was thinking getting some fioronis diffs for my rc8t. i know fioroni diffs has only 48 spur gear available for center asso, so Ill have some CNC work to do with it-I need at least 50t spur gear.
Thanks for replys to all.