I did. Its from Chassis book not the Engine book. Stop on in for a cup of coffee
But there's more! Book also shows '67 continued using the same bracket as used in '66 on one side, 2532 277
'67-72 a-body /6 used bracket 2532 278, same as 66 b-body. If yer lookin for 67 B that doesn't do you much good.