Pishta, You are right in reference to the 383/8.75 combo.
This 7.25 has no markings or tabs and may very well be a replacement to the original. I was unaware that all 273 67 'S' cars had Sure Grip although making it mandatory makes sense on the 4 Speed cars, mine is a 904 TF, but you're undoubtedly right that all such cars were originally 3.23 SG. I guessed at the ratio on this one by counting wheel and yoke turns and I know it's not a SG.
In any case this is a good deal for someone looking to replace, rebuild or have a standby system ready to use.
I am moving and don't want the trash haulers to take it when someone may have a need for it. I am doing the same thing with a 273 motor, hope to list it tomorrow.
