Post up a good pic of the truck and lets see what we think. I vote black right off the bat but red may have its place too.
If you are lifting it, which degree of bushings are you getting?
Does your kit contain drop brackets for the radius arms? If so, you may not need the 7* bushings. The drop brackets correct some of it.
When I put the 79 front axle under my 94, I used blue bushings. The truck is all silver, and I wanted a touch of blue here and there to set it off.
There was a point in my life where I would have said red.....................................but being older and wiser I say go black.
Seriously though, who else, other than yourself, is going to notice anyway?