Upper Ball Joint Boot ?

[7T1BURB]

Need your help....installing new ball joints (MOOG) in the Burb and have a question about installation of the upper ball joint rubber boot...does the boot install from the top of the A Arm first, then the ball joint OR does the ball joint go into the upper A Arm first and the boot installed from the bottom of the arm??? Logic might dictate that the boot goes into the upper A Arm first, but it seems to be a really tight fit!! Thanks for your help !!!!!