Duster Help

Look right there at the parting line to the block head. On the block there should be a long string of numbers stamped

I already told you this above^^

The 8 3/4 is the only Mopar rear axle that has a removable third member and not a rear cover
Unfortunately, this is the best image I have of the area so I cant distinguish much at all and judging from the amount of paint I'm not sure you could in person unless you removed some paint. And yes, I never believed it had the 8 3/4 when he told me.