8 3/4 seals rubbing on bearing retainers

hi pulled diff out yesterday nothing wrong with it just changing it to a sure grip.
while axles where out have noticed that the bearing retainers have been rubbing on the outer steal part of the seals. was reading a post earlier re paper and steel inner gaskets between the backing plate and axle thought this might have been the problem. but found some steel ones online they don't look any thicker. every thing appears to be pressed on correctly. trying to sort before diff is returned end of next week.
seals seam to be in as far as they can go measures just under 1.5 inchs.
Yukon axles green bearings
any thoughts ideas.??