Hi all.
First time posting on the mini site so hello! Hopefully this hasn't already been covered off and I annoy some people. I did do a bit of a search but didn't find anything.
I have just been putting the rear hubs together over weekend and ran into what is a bit of an issue. The hubs all bolt up nicely as everything is brand new. Problem occured when I tightened up the castle nuts on the rear hubs. The nip up nice and then had to go a fraction of a turn more to get the hole for the split pin to line up...
The problem is this. When I put the split pin in, the pin sits probably half off the nut, so it doesn't really do its job in holding the nut from loosening off. Is it alright for me to run a second washer the same as the new ones I just installed? Ie: two washers and then the nut to space it out further so the split pin will hold properly.
Any advice will be much appreciated!

Will upload a photo as soon as I figure out how to.
Many thanks, Nathan