the 3 hole y lower alt bracket is a a/c lower alt bracket

it will be used with the rest of the a/c brackets

the othe flat swing arm is for non a/c set up

cant strees it enuff..dont mix match the stock a/c or non a/c brackets and pullys

you just need that 1 a/c front bracket and 1 more belt for the alt and crank to be set up good to go

every one is correct showing you the non a/c brackets/pullys and the way it mounts...but you have 2 of the 3 a/c brackets and they are not the same and wont fit any other way.