associated diff grease

[paulc]

hi everyone

just a couple of questions i am finally rebuilding my zx5 and i usually use the associated clear diff lube/grease but i have found some assocaited black grease what's that for can it be used in diffs ?

the other question is i bought some rpm ball cups for my b4 but they are to long can you get two different sizes ? if so has anybody got the part number for the shorter ones so i can get some ordered

cheers paul