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Oil is the life blood of an engine. Looping the cooler lines is ok for test running an engine on a stand. But, for a vehicle under load I think it would be a bad idea. I have a stand alone air to oil cooler on one of my trucks with an oil temperature gauge. Driving in 20° F air still has the...

Yes, that is what I see. Seems as if you have it figured out.

The aluminum line across the radiator is a built in cooling feature of the set up. The stock hose and line oil cooler lines have had a bad history. There was a recall on the hoses next to the block. (If you want to waste some time, call a Chevy dealer with your VIN. You might have a truck that...

I drove mine this morning. I did notice the coolant red light came on only while the starter was engaged. I normally don’t watch the lights once the glow light goes out since there is no oil psi to watch. I go to the ALT lights on start up normally. But, I was thinking of this thread and caught...

I just went and tried one of mine. Turning the key on had the following lights come on. ALT 1 ALT 2 OIL Low Coolant Fasten Seat Belts Glow Plug The low coolant went out after 5 seconds of not starting while waiting for the glow plugs to finish. The oil went out within a second or so of...

No check engine light. Mentally figure you have no lights about the engine health. Pay attention to the ALT 1 and ALT 2 lights though. They are part of the charging system and need to be noticed. The stock thermostat is a 195° part that starts to open at 192° and is fully open at 203°...

That looks like a replacement data plate. Which means you get to play detective. Riveted rear motor mount brackets to the frame normally mean the truck came with a multi fuel. 1960 or so and newer was all multifuel production. Solid state flasher and blinkers came along in 1967 or so. Those...

Here is a video that shows the plugs you need to have the solid state blinker system:

I don’t know what the Transgo can and can’t do. CUCV wise. The vacuum pump at the rear middle of the engine has a hose that goes to the throttle vacuum valve on the passenger side of the injection pump. Then a hose and line go to the vacuum modulator on the side of the transmission. A little...

Thanks for the update. Great price too!

That tail gate doesn’t even have THE dent in the middle of it. Someone loved that bed and tailgate. It looks like the latching tabs for the under bed storage are broken off. Could just be the picture angle too. Not only is the tail gate good looking. The hinges and chains are all there. Often...

The new ones have new springs to hold the blade to the window. Worth the money in my opinion.

Yes you can. You could buy new 89-91 arms that have the washer tubing on them. Amazon has them for not very much.

Sorry, I saw they had a box and I put in the link. I don’t have a 2wd and don’t know if they are the same box.

That is a problem for all of us. Wear happens and rebuilds from auto parts stores are hit or miss. I had a worn out box like yours and couldn’t find anything I trusted to be better “rebuilt”. New like this : https://www.offroaddesign.com/gm-psc-steering-gears.html Just seemed too pricey. I...

Do all that was suggested above about the batteries. If you end up with 2 good fully charged and load tested batteries and still nothing at the switch. Check for power at the alternator and at the starter solenoid hidden behind the air filter housing. If you have 24 volts there, then go to the...

Looking under the truck should be your next step. Engine, transmission with a bolted on transfer case. Then drive shafts to the rear and front. If there is another box bolted to the rear of the transfer case. Then you could have something like a GearVendors over drive unit on the rear drive...

The brake light signal goes through the blinker wiring between the brake light switch and the brake lights. Here is a video about how to check the flasher box:

The transmission cooler before, after or independent of the radiator is a ball of worms this thread doesn’t need to touch. I put my oil on the drivers side and the external transmission cooler on the passenger side. I probably should have run the transmission lines to the passenger side of the...

Yes, drivers side with an extra transmission cooler that still goes through the radiator on the passenger side. Here is a video I did a few months ago about making new braided stainless hoses: