Moan at between 35-40 MPH

Ugh yenz guys... Aaaaaanyhow, the axles are new from dr. diff, green bearings. the housing and pumpkin are used. it's a sure grip cone style, 3:23. I used the royal purple gear oil that says it already has additive in it for the sure grip. I do have some actual chrysler additive for it but didn't think it was necessary.