1976 MCI 5B Challenger Info Required

[Dean.s9898]

First time Posting 
New to me and looking for any info on repairs to everything on it. Engine is an 8v71 with 4 speed man trans Which i have repair manuals on that aspect but looking for electrical. previous owner{s} have put their touch to the repairs. LOL  Junction box in rear has had electrical issues and would like to get it back operating  condition.

[Brian R.]

I think you need to be more specific as to what problems you are facing. You need an MC-5 Maintenance Manual. In it are the various electrical schematics. Then go to work on the rear junction panel with a micrometer and a continuity tester. The 5's were/are great buses...gl

[Gary Hatt - Publisher BCM]

You can order your Manuals here.  You should keep a set in the bus anyway.  Having them in the bus if you break down whilst on the road can save you a ton of money and time, so a mechanic does not have to figure out what is going on without the manual for your bus. They will have a wiring diagram in the manual too.

https://www.busconversionmagazine.com/product-category/bus-manuals/mci/mc-5c/

I carry a set in mine, but I have an Eagle and they seldom break down, so they still look like brand new.