Only help I can proved is I have column shift 3 spd (RHD though...) and the long rod is on the linkage at the rearest , short rod is on the linkge closest to engine...don't know which they attach to on the column though, my column was already removed when I got it.
This is how I did my 48 Merc. Go under the car and place the trans levers in neutral. Then place the column shift lever in neutral. The rods should only fit the correct lever.
