Randy: You have made me rethink the cotter pin thing. Now I'm not so sure it had cotter pins. My car is at the shop, so it will be a day or so, but someone else will know the answer. It has been 15 years since I mounted mine.

It could be that those slotted nuts act as a locknut. I think the locktite would work fine, as you are only holding the backing plate to the spindle with these 4 bolts.

Let's see what others feel.


Don