Green bearings & sure-grip center units

OK here's the scoop.......
First, the axles. They're Moser axles that came in the car when I got it. I have no idea what the original length should be or if these are stock length or not.

Second is the SG unit. Bought it from a member here a few years ago who is now selling a B Body in the for sale section. It's a cone style SG unit, 489 case, and the seller said the cones were remachined to make it work again. I didn't do a thing with it since I bought it until today. I pulled it out of storage and started reading the service manual. The manual states that pinion bearing preload should be 20-30 inch lbs of drag without the seal installed. If this thing has 5 inch lbs of drag FULLY ASSEMBLED I'd be lucky. I'm beginning to think I was robbed when I gave him close to $400 for it.

All I wanted to do was take out the 456's I have, and install this unit with 323's. Looks like I'll be stuck with the 456's again. I don't trust the unit now, and I don't have the tools to check it, or set it up properly so I don't want to install it in my car.

George