1934 Packard 8 Service Manual

There are 1934 Std 8 owner's manuals and parts manuals, but I have not been able locate a service or shop manual. Do they exists? Are they reproduced?

There really wasn't one, dealer's servicemen were given hands-on training and after that the factory Service Letters were the primary source of info. The 33/34 Service Letters were reprinted perhaps 30 years ago and haven't appeared again since - if you're lucky you will find them. PAC offers a reprint of selected excerpts from the 7th thru the 12th series and this can be useful though far from complete for the 1933/34 information originally provided. I have heard of a document available that is said to be a service manual but I suspect it is just a reprint of Service Letters. I do have a full set of the 34 Service Letters and might be able to answer a specific question if you wanted to send a PM.

Perhaps posting your query in the Packard section will get more information.