Rearend id in fender tag?

H22A4 said

Uhhh, this was after the fuel crisis! The highest ratio was 3.55 by then according to the 1974 dealership data book. And the 3.55 was only available with a sure grip which is code D91 (high isn’t on the fender tag).

The standard ratio on 225 Duster with a torque flight was 2.76 with the optional ratio being 3.23.

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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.