I have a 54 chev 1/2 ton with 3 on the tree. My clutch went out yesterday and I need some advice. Can any reputable transmission shop repair this or do I need someone with knowledge of classic cars? Also I've been wanting to switch to a four speed or automatic, and change the gearing for it to cruse at highway speeds. What are the benefits and costs of these options, who can do this kind of work, and should I do it in conjunction with the clutch repair? Thanks for your help.