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I own a 69 F250 4x4 highboy. I was told to replace the brakes in the front drums is pretty standard but for the rear drums you need to pull the axles. As this seems crazy, can anyone clue me in? I know stranger things have happened. The housing has raised numbers c30255 on it.
your f250 has a dana 60 full floating rear axle assembly the axle are bolt to the hub on the outside. In order to remove the drum you need to remove the 8 fasteners, either bolts or nut with cone washers. After removing the fasteners bang the very center of axle flange w/ a big hammer, this will shock it loose. Don't hit the studs if so equiped.
Then slide out the axle and put in clean safe place. Now you can get to the retaining nut/s that hold the drum to the spindle.
Most any truck repair manuel should illustrate this. Alot of years and make 3/4,1 ton trucks use this method.
some later model years use a "semi floating axle" for 3/4 ton trucks
Full floating axles supply torque only, they do not sopport the weight of the vehicle. You can unbolt the axle and pull it out without jacking up the truck.
the weight of the truck is supported by the axle houseing/tube by cone and cup bearings in the hub. A full floating axle slides down the center of all this with splines messing in the side gears of the diff and a flanage that bolts to the hub.
think of it like a cat axle but instead of the drum sliding over the axle the axle slides through the middle and is bolted to the drum/hub.
This syle was designed to use much bigger bearings w/o using a huge diameter
axle tube.
You'll see when you jack your truck and remove the wheels and center caps
it's really very simple.
Good luck Wes