Rear gear help?

Yall are full of ****. A sure grip unit has preload springs. If you can turn one axle independently of the other, something is WRONG with that sure grip unit. They should be pretty tight. The breakaway torque on the 10.5" Sterling unit that was in my 04 F250 Powerstroke was over 800LB FT. I remember, because Ford had to replace it three times, as they were having problems with them. The specs were listed in the TSB. I feel sure breakaway torque for an A body rear is lower, but you get the picture. It never bothered me one bit if I dragged a tire going around a turn. That just means it's in good shape. He's talking about it like it's a good thing because it is. There should be GREAT difficulty turning one tire separately of the other with a sure grip.