Please take a photo of it. Your car has a spool mount so that might make a difference but I'd still like to see it to know.
Rusty's car has biscuit mounts. E-bodies never made the change to spool mounts. Regardless, spool mounts really don't gain a ton of clearance, if any. Contrary to semi-popular belief, they also
don't locate the engine any differently than the biscuit mounts. The engine's in the exact-same place, best borne out by the fact that 1972 and 1973 A-
and B-bodies use the same bellhousing and clutch linkage per car line (A obviously doesn't fit B), in the case of the A-body the bell-side ball stud is the same... speaking of which, I hope you know which bell you have because they don't interchange between the '71-older and '72-up bellhousings.
Anyhow, per
Ye Olde Factoree Parts Manuall, the 1971 with V8 Valiant/Duster used the Federal PS pump, although it's not the clearest matter to discern since they use "with 3/8 threaded hole pump shaft" (Federal) and "with key-slotted pump shaft" (Sagging Gnaw). That hose is part #3420193. That seems to be the case in 1972 as well, since the same number is the only thing listed for Valiant/Duster V8 models. Of course, the Federal pump's lines come in from the
side, not the rear.
What's strange to me is that the E-bodies
do have a small-block Saginaw pump listed in those same years (2891218). Yes, it's a different
car, but it's the same
block. The relationship between mounting holes, motor mounts, and such don't change. The E-body Saginaw hose, #2891208, looks suspiciously like what you ordered. The "correct" Sag pump for that year would have the "pill bottle" reservoir, but the pump itself is the same in terms of outlet fitting(s) and mounting provisions.
Since I actually
own a '71 LA-engined Mopar with power steering, I thought to look through my own pictures. While I don't have a clear shot of it, the one picture I do have shows the early-style Sag pump reservoir, but
no hose behind the pump, i.e. nothing
visible. The factory put a battery tray in my way:
The area highlighted in yellow NE of the accursed tray is the
garage floor. There's
nothing behind that pump, but I'm almost certain the hoses are in place (in fact, I think one's visible under the battery cables). If you're wondering why I have so much clearance behind the pump, it's because my car has AC, which moves the pump even further forward (check out the offset in the rear bracket compared to yours).
But, and this is important,
there's no qualifier for AC in the PS hoses. There's only
one pressure hose listed for LA-equipped E-bucket with Sag steering, and it looks like what you've got. I suspect that the hose, in your case anyhow, needs to be installed first and that the hard-line end immediately goes
beneath the pump headed toward the core support, hooking back around to point the rubber part toward the steering box, which also has a direction-reversing metal end.
I'll try to get over to yon storage area this afternoon to see what secrets that battery tray is hiding.