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Unread 08-26-2015, 11:09 AM   #1
dlysle
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D44 disk brake backing plate

does the raised lip on the backing plate face in toward the diff or out toward the tire?

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Unread 08-26-2015, 11:49 AM   #2
RWKHaus
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the lip faces in towards the diff.
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Unread 08-26-2015, 02:40 PM   #3
mrblaine
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Quote:
Originally Posted by dlysle View Post
does the raised lip on the backing plate face in toward the diff or out toward the tire?
The backing plate is what the caliper bolts to that has the parking brake shoes attached to it.

There is a 4 bolt axle retainer that goes on top of the backing plate to hold the axle in.

There is a shaft collar that acts as a bearing retainer that presses onto the axle.

What one are you confused about?
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Unread 08-26-2015, 02:58 PM   #4
RWKHaus
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Quote:
Originally Posted by mrblaine View Post
The backing plate is what the caliper bolts to that has the parking brake shoes attached to it.

There is a 4 bolt axle retainer that goes on top of the backing plate to hold the axle in.

There is a shaft collar that acts as a bearing retainer that presses onto the axle.

What one are you confused about?
Come on Blaine. You know what he was asking. Or at least what it sure sounds like he was asking. There is only one item with a "lip" that can be mislabeled like that.

The axle shaft Seal retainer plate lip faces(protrudes) on the side with the axle seal (inward), on a common disc brake setup D44 rear axle.

Better?
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Unread 08-26-2015, 03:40 PM   #5
mrblaine
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Quote:
Originally Posted by RWKHaus View Post
Come on Blaine. You know what he was asking. Or at least what it sure sounds like he was asking. There is only one item with a "lip" that can be mislabeled like that.

The axle shaft Seal retainer plate lip faces(protrudes) on the side with the axle seal (inward), on a common disc brake setup D44 rear axle.

Better?
Actually I don't because there is a backing plate with a dust shield that has a lip on it that can be put on either direction.

And NO ONE would ever call a retainer a backing plate that expected a sensible answer.

No worries though, the next time you send me money for loaded backing plates for a disc brake conversion, I will remember this post and more than happily send over a pair of disc brake axle retainers along with a copy of this thread.

I strongly suspect your demand for accurate nomenclature will rise accordingly and in dramatic fashion.
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Unread 08-27-2015, 09:14 AM   #6
dlysle
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i was asking about the retaining plate that holds the axle in. thanks for the help.
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Unread 08-27-2015, 10:05 AM   #7
mrblaine
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Quote:
Originally Posted by dlysle View Post
i was asking about the retaining plate that holds the axle in. thanks for the help.
The raised lip on the disc brake style axle retainer is exactly taller off the flat surface by the difference in thickness of the cast disc brake backing plate and the stamped steel drum brake backing plate. So, that means it has to point at the seal to keep the bearing in preload.
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