I just love the 3/4" overall slop GM built by b/c when my pass. side sagged due to my b-i-l hitting a dead-furrow one night at a good clip going across a bean field to a kegger, they said, "oh, ya, 3/4" down is in spec!!!"
That's when I paid like $20 for my BB optonal A/C springs AND they installed them free...
PS., that was the night he popped a motor mount, cut the top rad. hose with the fan belt, blew her dry and cracked a head ALL while beating a '66/'67 tri-powered GTO dragging!!!
And to top it off, it was my wife and my wedding anniversary night b/c we had switched cars due to his '66 Buick Skylark having A/C.