1986 Transmission with wires torque converter lock up?

[Harmon]

I have a 86 Chevy c10 that had 305 but was converted to 350.

I am attempting to hook up my torque converter lock up switch.  I do not know the appropriate area to get vacuum to it.

I also do not know what type of trans i have.  It is my understanding I have wires going to my tranny, problem is I can look under truck at the moment.

[JohnnyPopper]

Hey man, gotta start with basics.

You need to know what type of trans you have before anyone can help you.

Take pics and post, that is a good start.

[Harmon]

Yeah, good point, I do not know what I have as I cannot crawl under truck at the moment where it is parked.  I know it cant be a 400 I assume since it had a 305 originally.

[JohnnyPopper]

If you have wiring going to the trans, it might be a 700r 4 speed with overdrive. A good one to have! If you can snap a pic from both profiles I'm sure someone on this forum can help you ID.

[DanMcG]

What does the gear selector on the column look like? A 700 would have the D in a circle.

[Harmon]

The D has more like a square around it, I assume that is the circle you speak of?

[JohnnyPopper]

I think that's it. If it's not Overdrive there is no circle/square.

[Harmon]

Ok, I threw cardboard down, and braved the tall grass to see I have a square pan trans.  That according to what was said above, and my book indicates a 700-R4.

I "found out" I have a lock up torque converter...I do not believe it was hooked up.  I have the lock up switch/Vacuum thing on the firewall.  I have to plug that into the carb to get the correct vacuum do make this work?

I also noticed there is a "Boot" looking connection hanging down under truck on right side. 

What is yall's thought to those 2 items?

Thank you.

[Harmon]

I guess I dont really know what is suppose to be connected to the trans besides, Speedo cable, trans cooler lines, and this TV cable (which at one point I think i saw on the right side of my trans?)

[Harmon]

Ok I think I figured it out.  The lock up converter is connected electrically on the left side of trans. 

[JohnnyPopper]

Good job Harmon!

I have transmission envy... would love to have one like it on my K10.

I got nothin on where to hook up your electric or vacuum, look to the other guys on this forum to assist. They are a great resource.

BTW, the search engine is pretty potent; use it for vac diagrams, as well as electric.