E-Maxx BL suggest diffs and bulkheads?

[RC Fan 4 Life]

The hybrids should be fine, i just don't understand though because FLM says to use

Hot Bodies diff part #s. Diff c8084-1 and Pinion c8030

Part # c8084-1 can not be found and you use the same diffs and pinion in both rear and front correct?

I would like to see a guide or something on the install before i bought them they look harder to install than on a diff that splits into and i have found some post where people have had trouble on the install.

Klausen: is the GA diff case and FLM51000 the only two things needed?

Thanks again for the help.