Which way do the serrated rubber-coated washers face for mounting the mustache bar? I know that there is an upper and a lower due to the hole sizes so they will fit over the tapered mounting bolts, but I don't know which way they face. Does the upper face towards the frame section or against the bushing? Does the lower face against the bushing? Where are the washers located?

Inward. There are pictures and drawings all over the internet, including this forum, if you want to be positive.

Which way do the serrated rubber-coated washers face for mounting the mustache bar? I know that there is an upper and a lower due to the hole sizes so they will fit over the tapered mounting bolts, but I don't know which way they face. Does the upper face towards the frame section or against the bushing? Does the lower face against the bushing? Where are the washers located?

From top to bottom, steel, rubber, mustache bar, rubber, steel. Easy easy.

Thanks. I had forgotten about the removable bushings that mesh with the serrated washers so it all makes sense now.