Hotbodies diffs

I should have been more specific with my question. I'm going to be putting these into Muggy and Turmoil, which use the exact same diff setup. Will this hotbodies diff be a drop in replacement for my existing diffs, or will I have to do something to make it all work? I'm asking because if there are modifications involved, I might just stick to what I'm doing now.

[jollyjumper]

for diffs it seems that who ever makes the muggy and sportwerks cars they also copied kyosho. they are the same size.