Being curious, I tried to dig up what I could find about my dad's old 76 truck.
Horsepower - 145!!! My 97 B4000 is rated for 160. Emissions really crippled the big v8s in the mid 70s.
Can't find torque for the 360, it may well be higher than the 220-225 or so for the 4.0 OHV. One would hope so, anyway!!!!!
But the 3 speed auto without a torque converter lockup, surely sucked up some of that torque.
GVWR (from the Ford brochure) was a little over 6,000 lbs. for the '76 F150. My B4000 is close to that, will dig up the owner's manual tomorrow, or look on the door tag. But it appears that the 76 pickup itself soaks up nearly two tons of that. My B4000, empty with an extended cab, I think is in the low 3,000 lb. range empty, and so the net payload is within a whisker for each.
No mileage figures given.... but as 'thirsty' as my B4000 is, guaranteed it has close to double the mileage. At least it appears that Ford had gotten rid of breaker points by then.
Other than being able to lay a sheet of plywood in the bed and close the tailgate, I think my B4000 ended up a much better vehicle. It certainly has the edge in longevity - still doesn't consume oil past a quarter million miles, and only one (very recent) transmission rebuild.
Likely the rear axle on dad's truck was a 9 inch. The 8.8 is certainly comparable, and from stories he's told me, the 8.8 has MUCH better wheel bearings. I know for a fact my 68 Bronco had ball bearings. Tapered roller bearings just last a LOT longer.
Never mind the 2020 Ranger..... I really think my 97 was / is a better vehicle than the mid 70s single cab F150s, nostalgia aside.