I do not know when Airstream switched over to the "standard" wiring, but I
would highly suggest that you change over to the standard. That way you can
tow just about any trailer and know that the wiring will be correct. An
added benefit is that you can get the 4 wire adapter so U-Hauls and other
trailers using a 4 wire system will work as well.
Here is a link that shows the standard wiring for both the trailer and tow
vehicle plugs. http://www.marksrv.com/wiring.htm
Scott
1960 Overlander
> Good morning ,Does anyone have a wiring diagram for the truck to trailer
> connections for a 1970 sovereign,I changed my defective one and?I can hear
> my trailer brakes click when I? turn on my signal light.I did a one to one
> change out so as not to make a mistake hoping it was right to begin with
> .? Thank you