new diff cup for new e-maxx

George16, I'm not trying to be a pinhead, but neither of these come with pinions as neither ad shows or mentions pinions as included.

Both are 43t ring gears, so is there a difference? Is the ST 43t ring gear any diff than the 43t hyper 7/8/8.5? If there is a difference, I'd def like to know. I guess what I'm asking is the "crown gear" part number the same for both? I know 1:1 diffs it wouldn't be different, but just don't know the ins and outs of these well enough to know.

Thats an awesome price!!

Did a little checking online with manuals - they are not the same part numbers, so they are different even though they have same tooth count. Thanks for saving me from finding that out the hard way George16!!