Originally Posted by
Arakon
I noticed one set has a sort of "ring" and the other does not, about an inch or so from the diff cup side. I see no purpose to that, though. I don't recall if they were in the same bag in my non-FT kit.
Edit:
@truck driver: are there other changes needed to use them, though? And any idea why they "upgraded" them?
no other upgrades needed,
I think the rears were just too long and they hit on the out drives on full up or down travel, or plunged too deep into the out drives.