Yeah, is the backing sturdy enough to press the axle thru, I am concerned about bending it. I have a 100 ton press available, but before I attempted that I thought I would check for other ideas.There isn't really alot of space to support the assy. close to the center of the plate.
Rear axle bearing puller and ABS sensor ring remover
I have developed a tool to pull the rear axle bearings off the axles that is so easy a girl can do it! My tool is the result of 45 years experience. Call me and I will send you full info and pictures 850-893-8074
It helps to have a fixture similar to the one in the above link, although that price is beyond insane. Years ago I made one from part of a rear axle housing. I just dug it out a few weeks ago to press the axle out to replace the seal.