My initial thought is GM got lazy and didn't update the photos, or at least used some old images with newer ones spliced in. I've seen obvious pre-1972 truck (body) images used in 1973+ manuals.
First off, the upper picture shows a TH350. Those weren't around then. It also shows a coupler in the second picture, which means it has a 10 spline setup. 10 splines weren't around (officially) after 1985. Yes, I know parts get used up sometimes, but this is an '90?
The TH350 never had 6 holes in the tailhousing, (picture can be construed as showing 4 bolt holes) yet it shows a 6 bolt hole adapter which would have been 700, 400, or 4L80E, which either had no modulator (shown) or had it in a different location.
The drivelines, crossmembers, and shifters would be different on two different one tons because of adapter length (tall vs. short, 3" difference for the 465-205 adapters) which is not something GM would have done. That saves them no money. At that point in the production run, any overages would have been used up, if they could even do that.
Where is the shifter bolt boss on the adapter in the upper picture? Looks to me like an NP208/241 adapter...whats it show for 1/2 ton adapters? Same picture?
Lastly, the picture of the 205 case is generic. Where is the 4wd indicator light switch?
