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Discussion Starter · #1 ·
Hey Guys,

i've got a '78 crew cab car hauler. Converted by Fargo.
Only service manual i have is 1977.

Looking for wiring diagrams to and from the bulkhead.
Went looking here and on the net for a 78-79 manual.

My bulkhead is the one piece square one.

Also, my starter relay has 7 terminal's and no threaded stud, instead of 4 terminal's and a stud like my 67 Coronet does.

Anyone have any pic's of either diagram ?

Thanks!
Mike
 

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read quote below from my site

howdy / there is NO 1976 FSM for Ramcharger's or Truck's and the same go,s for the 1978 year Ramcharger's / if you have a 1976 or 78 and need a manual then it go,s by Production Date as to which manual you should buy / so if you have a 10/75 thru 5/76 you would buy the 1975 manual and 6/76 thru 10/76 for the 1977 manual / basically its a half [mid-year] thing were the first half of the 1976 production trucks were 1975's and then around May or June they started making the 1976 and a 1/2's which are the same as 1977's / basically the same BS for the 1978's = email me with your production date

1977 was the last Year for LARGE truck production 500 to 800 series - 1981 was the last year for the Medium series 450 to 550 production
1979 was the First year they combined the Ramcharger and Truck info into ONE manual

https://www.tapatalk.com/groups/dodgetrucks/fsm-factory-service-manuals-1972-to-1992-t612.html#p762
 

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so l,m probably the only person thats gonna be able to help you = email me , its below and include all info from this post
 

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The one piece bulkhead is what confuses me. The ones I have use 3 plugs, each with 8 wire spaces.
My medium duty may have a one piece, I can't remember.

Bucky
 

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My FSM is for 74. 77 was last year for mediums in the US. Your manuals will likely be more helpful than mine.

Bucky
 
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