Can I use F Body spindles?

in '76 they switched to the same size piston, for A bodies it was a one year only part. When I worked at a retail parts store I looked them up and they were the same part #.
http://www.partsamerica.com/ProductList.aspx?PartType=5003&PTSet=A&SearchFor=Caliper

http://www.partsamerica.com/ProductList.aspx?PartType=5003&PTSet=A&SearchFor=Caliper

Using a '73 '74 power master with the smaller bore and the '76-F body pistons with the larger bore is a common upgrade to make the breaks feel as thought they are power breaks without having the twitchiness of the booster.