73-87chevytrucks.com

Welcome to 73-87chevytrucks.com

73-87chevytrucks.com is not only a forum we are also a vendor for a variety of parts both replacement and custom. Check out our store at 73-87chevytrucks.com Online Store

73-87chevytrucks Social Network

We are also on Facebook so give us a like to the page if you like what you see: http://www.facebook.com/7387chevytrucks

73-87chevytrucks Merchandise

SpreadShop Site

Cafepress Site

A/C advice needed

August 28, 2026, 12:30:48 pm by Chanman09 | Views: 47 | Comments: 1

Hello all,

It's been a while since I posted on here, and honestly, it's been a while since I've messed with the ol' square. We had some family excitement and travelling and bought a new house/moved over the past year and it's finally settling down. TLDR section at bottom!

While I was moving, I used my 1985 C20 with 350/350 to take loads of tools and pool parts and trash to the places they needed to go. She ran wonderfully and pulled quite a few big loads flawlessly.

The last trip it made was to my mom's place, where we stored some things and I'm about ready to go grab it and bring it to the new house.

My next little project with the square will be getting the AC system to work. The blower blows and all the switches work. The heater works like a champ. The compressor turns, but it's noisy and the bearing may be on it's way out. I pulled the belt off there, and have been running it without for a year or so.

My initial thought was, 'Hey, I'll slap a new bearing in there, slap some R134 nozzels on there, vaccum, dry and charge it all up and cruise with some AC.

Then I started digging and watching youtube, reading forums etc. So there are some folks that do/say to do exactly as I say and seem to be ok.

But then, there are the folks that change a few things out.

Then, there are the folks that change absolutley everything out.

Now, I'm kinda cheap, but I also don't like doing the same thing over and over because I screwed it up to begin with.

So what do I do?

Currently, my shopping cart online is like $70 with a dryer, hoses, orifice tube, clutch bearing, and o-rings. I will have to add the conversion to 134 kit and cans of r134 to that if I keep it simple.

Do I NEED a new Condenser?
Do I NEED a new compressor?
Do I NEED a new evaporator?

Or can I flush and pray??

Let how deep do I go? (it's a field find. sat for 30 years. not gonna be a show truck. just want to drive and enjoy and not sweat)

TLDR: AC doesn't work and I need to know if I can cheap out and just switch some hoses and drier, or if I need to change all parts and pieces?

Thank you all for the info and opinions!

Read More | Write Comment

Help with Column Shifter

August 27, 2026, 05:37:02 pm by SILSquarebody | Views: 71 | Comments: 2

I picked up and 81 K10 the other day. When you go to start it you have to pull up on the shifter for it to start. When you grab hold of the auto shifter on the column it is real sloppy. There has to be something loose I am hoping. Can anyone steer me in the right direction to fix this. Thanks so much in advance.

Read More | Write Comment

Adding Front Cupholders to your 91 suburban type console

August 09, 2026, 12:16:20 am by 78 Chevyrado
Views: 1995 | Comments: 2

I have a 91 suburban console in my 78 C20.

Here's how I added front cupholders to it using one of those cupholder units thats supposed to go between the console and the seat in normal cars.

I was working out of my truck doing framing and trim when I added this. I needed more space for stuff.

Ugly from the bottom but nobody will ever see that.

From the top I filed it down to fit the console. It takes a while but the result is worth it.

Use 4 bolts to put it together with the stock 91 console.

Read More | Write Comment

78 Chevy C20 TH400 Kickdown

August 09, 2026, 12:10:23 am by 78 Chevyrado
Views: 3060 | Comments: 6

I don;t know why it was like this but when I got the 78 C20 it would never kickdown ever...

I tried to set it by the way the manuals say to do it.

Still didn't work. So I did this mod to my switch under the dash. The way to set it is to pull it one way then floor the gas and it will set that switch. well on mine if you floored the gas it never even touched the switch. no idea if that was from factory or grandad did something wrong but here was my solution. wrap ever larger pieces of hose until it acts right. took this much of layers of rubber hoses to make my truck act right. It's been perfect ever since, 20 years and growing.

Read More | Write Comment