upper steering column , 4 speed 68 barracuda

I don`t think all of the parts were ever put in my steering column that`s supposed to be there. (was a basket case) Can anyone tell me what the 2 square headed bolts in the upper signal light housing are supposed to do / mine just have nuts on the other side of the housing, holding nothing. I seem to be having a problem keeping the upper housing stationary too > any comments or tips appreciated . I have looked till I`m blue in the face trying to find a schematic of this particular set up, but can`t! Thanks , Bob