your 50 should look like this reference pic
...pic... ...pic... ...pic... ...pic... ...pic... heater hose routing might be a little different depending on type of heater you have
I agree with what was stated above. Factory Assembly Manual is very helpful.
I don't recall but one of the years had some midyear changes. The firewall stamping was a little different and the fuse box and other changes... maybe 49?
