Hi guys!

I'm in the process of getting my '66 C10 short/fleetside up & running after swapping out the 250 six/3-on-the-tree manual for a 350/TH700R4 and an automatic column from a '78 Chevy van. I've done all the finagling to get the auto column physically mounted & hooked up in the truck, so now it's mostly down to the wiring and a few tidbits.

I have the '66 C10 wiring schematic, but for the life of me haven't been able to find the schematic for the '78 van, which has 8 wires coming out of it vs. the 7 from the '66 harness. Presumably one matches up the wire colors from one harness to the other, and I know the extra (brown) wire is probably for the 4-way flashers, but I want to be sure I do this correctly.

How does one go about hooking up the 4-way flashers on a truck that didn't come with them from the factory? Have any of you done a similar swap, or know a good place to find the wiring schematic for a '78 G10?

Here's what I have so far:

1966 C10
Purple (fuseblock - 12v+ input, I believe)
Black (horn)
Dk. blue (RH front park lamp)
Lt. blue (LH front park lamp)
White (stoplight switch)
Dk. Green (RH tail light)
Yellow (LH tail light)

1978 TS switch
Black
Lt Blue
Dk Blue
Brown
Purple
Yellow
Green
White


Also, the backup light switch on my column was busted when I got it from the wrecking yard, so I need to replace that as well, but I'm not having much luck finding one online. Any suggestions?

The flasher knob thingie was also AWOL when I picked up the column, so I need that too, but I'm not sure what it looks like. Do any of you have a picture of a similar setup on your trucks? It looks like it's supposed to slide sideways into a slit on the switch itself, and then operates by being pulled out/pushed in?

One last question: I bought a Lokar shift linkage kit, which contains a "cut to length" ss rod and a couple of heim joints at either end. Turns out that rod is 1-2" too short for my truck! Since it's threaded on one end only I suspect I'm going to have to have a replacement custom made, unless anyone has any ideas for me.

Thanks!

Brad