ddnavar

I have not been able to determine if my 2004 3124KS axle has a e-z lube feature or not. It does not have a rubber plug on the bearing cap, but rather a grease zerk on the center of the cap. If I over grease it, where does the excess grease come out at?? Or do I have to unscrew the cap to find another grease zerk, or do I have to pull the hub off..

Any advice is appreciated. thanks