What can i do
 

Ok i want the slipperential and the gmaxx non extended chassis can i just buy one of the dog bones that mikes sells(like 101, or 72mm which one fits the back portion of the gmaxx chassis the longer one right?) will this work because i want to not spend 45 bucks extra to use the slipperential can i just buy a cvd that fits the non extended chassis and slipperential and if so wich one.

I'm sure if you talk to Mike when you order the slipperential and inform hm of your setup he'll take care of you. Always seems to take care of everyone.

which legnth is the rear portion of the slipperential 72 or 101 or neither