stephen p luce
Newbie
So I put a 97 vortec long block in my 89 K1500. I used the steel horseshoe bracket for the accessories and ever since the a/c compressor vibrates when turn on. I checked all the mounting bolts are there and tight and the compressor support brackets that run to the intake manifold are in place. Blows nice cold air but I'm afraid something is going to brake and it sounds horrible. Anybody have any ideas? I thought maybe going to the cast aluminum brackets might fix it but haven't found any close by, pick n' pull is a hour and a half drive from me.