Neighbor came over as I was tearing into my rear brakes and said he had never seen a floater rear end before.
1979 F250 D60 front don't know the rear. So what's a floater rear end?

 

Full floating rear. That's where the axles don't support any of the vehicles weight.
In a full floating rear, the weight of the vehicle is supported by the spindles that the rear hubs ride on. You can also pull the rear axles without removing the wheels.
In a semi-floating rear (F100/150, passenger cars) the weight of the vehicle is supported by the axles.

 

A floater rear end allows you to take off a cap and pull the axles without having to remove the tires or the diff cover. If you break an axle, you can pull the cap, remove the axle (if its not in too many pieces) and slide in a new one.

 

Thank You.

 

If she's stock, you would also have a D60 on the rear - probably the SnoFighter package.

Be careful when replacing the drums - they're heavy and you could nick the seal on the axle shaft going in. Then punkin blood would leak out, down the tire leaving you scratching your head as to where is the leak.