A body big block power steering gearbox

Yes, the Factory likely used up the parts bin on early 68's. I have a picture some place with all the manifolds lined up together...easy to see the change in design. I'll see if I can find it. The passenger side stayed the same a 3 years. The 440 cars had a unique driver side 1 year only for 440 A body, the passenger side on these 440 cars then used a 3/4 metal spacer in the flange to make up the difference of the 440 being 3/4 inch taller on the deck.