Pivot show Reference number 7499336

I believe this is the Pivot Shoe 9/16" but not sure which part number I should order for a replacement.

Part # 15-129
or
Part # 15-152

When I measured the height of the old Pivot Shoe, it was 2" or a hair less.
I was advised to send a picture here to help pinpoint which part to order.
Any help would be appreciated.

Thanks,
Sean