I was bemused to discover that the shop didn't properly tighten the nuts one of the rear wheel of my 1984 D50 this afternoon (after hearing the hub cap clinking a bit). When removing the wheels, one of the nut, which was incorrectly tightened by the shop, sheared off.

I'm looking through the FSM and it's not entirely clear if and how I can replace just one of those bolts.


Any tips on how to do handle this?