8 3/4 SBP 10x1.75” Drum Help*

Here is a picture of an A body 8 3/4” backing plate. The flange offset is 1 7/16” or 1 3/8”, I would check the offset of your current backing plates to confirm that you have the correct backing plates. Did you get the complete set of 1.75” drums and backing plates together, or are these pieces that were put together separate? Most people don’t know anything about the small bolt pattern stuff, which is all I run on my A body cars. I have a few extra sets of everything if you find out you need any or all of the components to make up a complete set. Including the original style bell flanged drums.

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Great info thanks for sharing this.
I’ll disassemble everything tomorrow, measure the backing plates and post pics tomorrow.

The shoes and cast color drums are from a local guy on Long Island who sells Mopar parts and the black drums are from an ebay seller who had already sold 28 drums neither set was cheap and both sets appear to be identical.
“If” the plates I have are good A Body plates I’ll pull the axles to look at the bearings to see if they are pressed on properly. If I need to purchase backing plates/drums I will send you a message, thanks for mentioning that you have them