Just wondering what is the difference between the stalks on early 280z and late 280z. Or will a 78 stalk work in a 75??

Nope. The 75 has a 9-pin connector and the 78' has a larger 10-pin? connector with the headlight (large wires) in the same plug. The 75' combo switch has seperate power and ground wires for the headlights.

Sorry.

Dave

thanks now i can sort thru all that I have.