Tony;
Thanks for pointing out that little "change" in those turret-base attachment mounts done, I think, by the US Army / APG, "long ago"!
Ever since I saw / had my Bandai kit of this thing from long long ago, It's amused me! (and perturbed me a bit, too) The chuckles got louder when I visited APG and saw the real machine back "when" ... and asked the available curator staff about this and how did it work. They assured me that this was how the Germans built and used it.
What is perhaps more astonishing is that the Bandai kit engineers MAY have realized that something was wrong... The box-art shows the stowed vehicle with these added "wrong" mounts on the top-rails... just as seen on the APG example. But the deployed vehicle lifting the turret off does NOT show these mount-plates on those rails - but does show the chain-fall hoists as they would have looked rolling along those rails!
As clearly seen in the original pic, and "obvious" (ONLY when one actually looks AND thinks about things in a mechanical / functional way), those turret-base pieces could not be attached to that top rail like depicted in the D kit and there could not be any pegs or other mounting plates sticking out from that top rail that would block the chain-fall wheels... But apparently almost all modelers, even those getting that cool AM detail kit, somehow never comment on this!
There IS, however, some possible "right", here. It MAY be that The Germans did re-arrange and add those mounts to the rails... but they would then also have modified the chain-fall hoists to have the operating wheels further out-board to clear those mounts during deployment... This MAY be what happened. But it WON'T work as the styrene and PE kits show it assembled...
The devil is always lurking in the details!
Bob
PS: Simply cut away or don't put on those little mounts on the top-rails, and scratch in some simple mounts for the separate turret-base rails on the fenders. Specially if you want to actually add on those chain-fall hoists. It's that, or modify your hoists to move those hand-wheels out a bit to clear those mounts.