is this rigth
 

hi im new here. i have a e-maxx with a hv-maxx(junk) thati wont to go like hacker or somthing like that not sure yet. i do know im going to have to upgrade my diff's. so my ? is is this rigth that the Hardened Differential and Pinion - From Hot Bodies Lightning PRO will fit in my maxx:032: . i ask because it shows up on the hop-up list in the rc monster store.

The hot bodies diff will fit but it takes a different diff case.
It depends on the amount of cells and type of motor you going to run.
The more cells the more weight. In turn it makes it harder on the diffs.
The more cells the more power you have so harder on the diffs.
The tires size makes a difference as well. The bigger the heavier
the harder on diffs. The hotbodies pro diff is geared lower than
the other diff. 4.3 to1 verse 3.31 to 1. Ue has the diff case to go in
stock bulk heads. The flm and ue has a bulkless to make the diff case and
bulks heads all one unit for alot stronger set up.

WELECOME TO THE FORUM.

thanks. so if i would go with the hot bodies diff. what diff case would i need?

http://www.rc-monster.com/proddetail...LM18700&cat=47
That is what I use. You can also get the ue diff and cases together.
It would fit the stock bulk heads.