Rear end proper lube

Posted by Hans Ahlness On 2014/9/5 22:13:00

OK, somewhere in my reading I thought I saw something regarding rear axle lube spec GL-4 or -5. Apparently the newer spec is corrosive to "yellow metals" like bronze, brass. So my question is, any yellow metal parts like bushings or bearings I suppose in the rear end or steering box of 1952 cars?