I see the old style inserts from the schumachers of yesteryear are back, but i do like

Good effort with the kit page, time well spent me thinks.
Couple of questions.
Can the rear hub and captured pin drive shaft be crossed over the the DEX410 but with the 61mm driveshaft being used instead of the dex210`s 65mm shaft?
What does the team think or prefer, Ball diff or the geared diff?
what size is the kit spur gear and is it the same design as the 410?
Thanks in advance.