I am doing a disc brake conversion on my 38 ford I beam 1. I have speedway spindles 2. I have the caliper brakets for GM calipers. 3. And I have a set of 40 hubs . Its sounds like a good start but my question is can I use a hat rotor off of a ford f-150 like a 80s model or maybe a dodge pickup . Has anyone tried this and if so what was the outcome if not am I a first attempt . I really dont want to spend to much time trying alot of parts thats already a failure any help on this would be appreciated . Thank in advance!