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mikek6741 · 09-20-2019, 01:24 PM

I have a 9 inch rear differential (51 inches in width from inside each backing plate) in need of brake drums but do not have a history of what the rear end came out of. I have the old drum and took it to several parts stores trying to replace it to no avail. The old drum is 11 inch in interior diameter, with the bolt circle of 5 on 4 1/2in. The brake surface width is 2 1/8in., the axle opening is 2 7/16in., with a total drum ht. of 3 1/4inch. I venture to say that it may be from a 1957-9 Ford but cannot seem to find any drum that exist for that vehicle. Closest I found was too deep and the drum hit the backing plate. Any help is much appreciated...
M.

09-20-2019, 01:24 PM	#1
mikek6741 Junior Member Join Date: Jan 2019 Location: Titusville, FL Posts: 20	9 inch rear axle brake drums I have a 9 inch rear differential (51 inches in width from inside each backing plate) in need of brake drums but do not have a history of what the rear end came out of. I have the old drum and took it to several parts stores trying to replace it to no avail. The old drum is 11 inch in interior diameter, with the bolt circle of 5 on 4 1/2in. The brake surface width is 2 1/8in., the axle opening is 2 7/16in., with a total drum ht. of 3 1/4inch. I venture to say that it may be from a 1957-9 Ford but cannot seem to find any drum that exist for that vehicle. Closest I found was too deep and the drum hit the backing plate. Any help is much appreciated... M.