Dana67Dart said

This part number is specked for 66 thru 70 something 10x1.75, 7 1/4 and 8 3/4 rears.

At some point the 8 1/4 with 5x4.5 became the 8 3/4 replacement

Iirc the 7 1/4 was still used in /6 cars.


What rear end do you have?

It looks like 5x4.5?

Post some photos


I got these from summit. Great customer service.

The first set they sent me had 9" Oriley brand drums inside.

2 possible things happened...

1. The manufacturer mis labeled the box
2. The manufacturer put the wrong drums in the box
3. A customer bought the cheaper 9" drums at O'riley and the more expensive 10 inch at Summit. Swapped the 9" into the 10" box and returned to Summit who resold them not knowing they were the wrong part inside.

Photos just taken from my spare set.


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