Should not be a problem.
I can supply one data point for the cross reference table: When I restored my '66 Sprint GT, I used a '76 spider as a parts donor. The Burman box & column out of the '76 replaced the ZF from the '66 with little difficulty. I think the '76 column was 1/16" or so shorter - I did have to position the aluminum steering column support as far forward as possible, and sand the edges of the shroud a bit to ensure clearance with the base of the steering wheel.can anyone tell me if a steering box out of a 71 spider will fit a 69 gtv
"While the 1973 Spiders retained the same box as 1972, the 73 Berlinas and GTVs got a u-jointed box (105.71.23.002.00)."