you mean the four flat head 3x8 screws that hold your diff together?
replace these with 3x10 screws. the holes go to 15 so some guys
are using 3x12. ira,cory john and i are all using the 3x10 screws with
a little permatex ultra blue gasket silicone part # 77b. do yourself a
favor and go to ace hardware and pickup the screws,silicone,and some
naptha over by the paint thinner and other tins of chems. when you go
to clean your diffs put all of the gears and even the plastic diff cup
with a little naptha in a jar,let set for 5 minutes and your gears will
come out clean