Agreed John, and doesn't it seem a waste to throw away a whole stub axle compared to just changing the seal collar.
Lotza Landies, I really don't know what is standard and what is not, I can only tell you what I have on my vehicles. My 1980 6cyl 109 has collars on the front, sals rear axle, also has collars i'm pretty sure. The 1975 88" has collars on the rear, I haven't pulled the front axle apart yet to find out, but I'm assuming it has them.

