Finally set the 400 back down in the chassis and got all the brackets and pulleys lined up.
Had all the brackets but the rear alt to manifold, but found one in my stash.
But no spacers to be found with the car.
I got a 75 Factory maunal with a 76 supplement and a CD disc with pics and info. But they only show the length for 2 and both are wrong for the 80 amp deal. At lease to line up my pulleys.
I think there are 4 spacers used? Does anyone have the overall length of these spacers and there location for future reference and to make sure I got them all?
BTW: the 76 Firebird 80 amp alt doesn't have the adjustable bracket shown in the pic, just a hole to lock it in place at that locqation. The idler does the adjustment. Thanks for the help.