Are The '73-'76 Upper Control Arms The Same For Disk And Drums

StrokerScamp said
NO, they are not. The 73-76 drum brake cars were small bolt pattern which had the small ball joint control arm. They used the small bolt pattern all the way to 1976 in the A bodies and with that, retained the small ball joints which used the small hole upper control arm.

StrokerScamp:
You are correct about certain things, and you are wrong about others.
The 1973 to 1976 A body cars were all big ball joint, wether it had drum brakes or disc brakes. It made no difference what so ever.
You are right in the statement that drum brake cars, were the small 4 inch bolt pattern in 73 to 76.