Rearend id in fender tag?

The GG white book shows a 7.25 3.55 for 72 but not for 73-4, just 3.23 and 2.76
Wish I had a 75-78 book. Wonder what gears came in the 76 A /6 833OD? First American car to get 31 MPG hwy.
I had a 75 Dart Sport /6 3 on the floor but don't know what gears it had. Felt like 2.76 as it was slower than frozen snot.
I've had /6 trucks from 73-87 with /6 and all had 3.91 gears in either a 8.75 or 8.25.
Trucks were exempt from fuel economy standards that were coming in so that’s why they were still available with 3.91 gears!

That’s the loophole AMC used when they came out with the 4WD Eagle.