Horn, Turn Signal, Steering Column

[asphaltburner]

Yo! Y’all!
Took quite awhile for me to finally discover, and document, the answers to my questions about horn hardware in the ‘70’s and 80’s trucks. Here’s what I’ve found,…
Seems like the 1973-1978 steering wheels were all the “Type I” steering wheel,…with a smaller, more-square horn button. These continued through 1987, but the “Type II” steering wheel was begun in 1978 and continued through 1987 in addition. The Type II wheel had a much larger, more-rectangular horn button. Here’s pics of the Type II wheel with the Type II horn button above, and the smaller, Type I horn button below:



Assembly: First, here’s that infamous turn signal switch (the return springs are easily seen) and the copper horn contact:



Turn signal cancelling cam in place:



Steering lockplate ready for installation:



Lockplate compression tool (like $13 from NAPA. Can be done without it, but I wish you GOOD LUCK!):



More pics and procedure in the following post.
Todd.