CK5
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1973 C10 "The Purple Truck"

Basic build
One relay for up and the other down?
Yes. The window motor wires connect to the #30 terminal, and the NC terminal is ground on both relays. Then the NO terminals get the power, one at a time, to get the movement.
 
Sounds like it shouldn't be too difficult to wire it up myself. I'm only going to do the window and only the passenger door.

I'm thinking I'll need to pull power from the battery but I should be able to run the relays from the fuse block. I don't think there's a feed from the fuse block big enough for the window motor.

73-C10-fuse-panel.jpg
 
Perfect plan. How cluttered is it getting at your battery? Would it be feasible to go to the junction block on the firewall to power the relays?
 
I was just thinking I do need to clean up the battery connections. The power window should be the last thing I add so it would be a good time. But yeah, that junction block would be easier to connect to.

One thing I don't really like about the pro stick is the reverse lockout. I made my own extension so that I can go into park with one hand. My bottom 2 fingers can push on the extension while my hand pushes the stick forward. The only thing preventing it from being perfect is having to squeeze the trigger to go into park.

20230218_180601.jpg
 
I can see it being annoying, but with where your shifter is located reverse lock-out is a necessary evil. I can recall many many years ago a V6 Vega I built, and used a junkyard floor shifter for the crappy TH200. Wasn't on the road two weeks when my girlfriend at the time accidentally knocked it into reverse while were doing about 35 mph. I went 4 speed shortly after...
 
I can see it being annoying, but with where your shifter is located reverse lock-out is a necessary evil. I can recall many many years ago a V6 Vega I built, and used a junkyard floor shifter for the crappy TH200. Wasn't on the road two weeks when my girlfriend at the time accidentally knocked it into reverse while were doing about 35 mph. I went 4 speed shortly after...
I was looking at "bypassing" the lockout but I got to thinking about how easy it would be for my pup to fall into it and decided that was a bad idea.
 
From what I was finding you can't reach all the gears in an OD trans with the column shifter. Plus I've always enjoyed floor shifters.
 
Not sure what to make of the dust cover that came on the 4l80. It's sheet metal, only uses 4 of 6 mounting bolts, and it's a little hacked up.

20230219_174754.jpg20230219_174750.jpg
 
The way it's hacked up reminds me of the trouble I had with the dust cover on the TH350 when I tried to make it work with the 1 piece rear main seal engine. Makes me wonder if the dust cover on the 4l80 was replaced for some reason.
 
From what I was finding you can't reach all the gears in an OD trans with the column shifter. Plus I've always enjoyed floor shifters.

You just swap out the little indicator for the needle, the column didn't change travel of the shifter rotation that I know of.
 
From what I was finding you can't reach all the gears in an OD trans with the column shifter. Plus I've always enjoyed floor shifters.

Ha, who told you that? They came from the factory with overdrive transmissions. The shifter just moves around. It has no detents. The detents are inside the transmission.

That's not me trying to convince you to use a column shifter, I was just giving you a hard time, but it would definitely work if you wanted to.

Martin
 
The way it's hacked up reminds me of the trouble I had with the dust cover on the TH350 when I tried to make it work with the 1 piece rear main seal engine. Makes me wonder if the dust cover on the 4l80 was replaced for some reason.
I bought a nice OE aluminum one for my dads car that we put a 4L80 in, I got it from Summit. It was a Genuine GM cover.
 
Ha, who told you that? They came from the factory with overdrive transmissions. The shifter just moves around. It has no detents. The detents are inside the transmission.

That's not me trying to convince you to use a column shifter, I was just giving you a hard time, but it would definitely work if you wanted to.

Martin
At first I thought you were implying I should do a 3-on-the-three figuring you were on the manual transmission angle. Haha


That looks like a 350 cover to me that they cut
That's what I was thinking. I was wiping all of the grime off of it and I was trying to figure out why it was tearing up the rags so badly.


You priced a new dust cover for a 4l80 recently? Suckers ain’t cheap.
I'm just surprised someone bothered to put the effort in. I guess they did a better job than I did when I tried to make my old TH350 dust cover work with the new engine.


I bought a nice OE aluminum one for my dads car that we put a 4L80 in, I got it from Summit. It was a Genuine GM cover.
I just found those. As much as I prefer that style, I'm already over budget a couple hundred dollars. I went down the rabbit hole of things you can improve in the valve body.
 

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