[suicideneil]

Center diff is all but impossible on the gorillamaxx chassis- requires a totally custom built unit that also limits thew gearing available due to to the limited space between the chassis rails- a center diff bolted ontop of the motor mount area is far from ideal unless the rails are hacked about a bit (someone been studying the Candyman's truck perhaps?). I'd say stick to a normal tranny as it makes life much easier; you can get a centerdiff to fit inside the stock 3905 and 3906 trannies with a little work....

As for revo platform vs maxx, case of personal preference as to whether you want the revos handling or the maxxs truck style more. Horses for courses....