I have asked this question before and haven’t been able to get a definitive answer. I have seen these core supports mounted both ways on the trucks I have purchased over the years. Some mounted in the middle, some with two bolt holes on either side. Some mounts were definitive hack jobs by previous owners, whilst some looked factory both ways. I’m not sure what to tell you. Hopefully, someone comes along who could give us an answer. Was it single for some years? Two holes and off centre for others?
When I assembled my 1 ton (53 body, 50 frame) I used the center mounting style with rubber cushioning under the core support.
Last edited by Fox; 09/28/2018 9:31 PM.
