1966 c20

[GMCDAC]

Although I don't have one of these trucks right now, I am sure that there is a major problem. I wouldn't drive it anywhere until a different steering box is installed.

DAC

[Hantke]

Okay, I figured it didn't look right. But I don't actually know anything about these trucks, im just using applied common sense lol.


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[GMCDAC]

Originally Posted by Hantke

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Okay, I figured it didn't look right. But I don't actually know anything about these trucks, im just using applied common sense lol.


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Bearings should never be exposed and the full rack of bearings should be there, like you were thinking. All the lube is gone. I bet that isn't a difficult box to find at junkyards yet. Good exercise in common sense!

The 4:56 will definitely take more away from your top speed but it will pull anything! I would think 55 mph is still realistic though.

DAC

[Hantke]

That's what I figured, I get my first paycheck in two weeks, so I'll have to go and see what I can find, I have no idea how to remove one though, guess I'll find out!


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[Culver Adams]

Originally Posted by Hantke

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Are steering boxes meant to be wide open? Here's a picture of mine:
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It seems fine now. But appears to be missing a ball bearing and it seems odd.
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Sent from ...

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Hello Hantke,

I've seen a couple of GMC/Chevrolet steering boxes but I don't know that much about them. I've not heard of GMC/Chevrolet designing and building one with open-air-flow cooled ball bearings. If you are sure you have one so designed and built, remove it from your truck as it is too rare to be driven upon the roadways. If you are not sure that is what you have, follow GMCDAC's advice posted at 07:18 PM today.

Please don't let the lady behind the windshield in your earlier posted photo (and others) ride in this otherwise good looking vehicle until it becomes safe.

Regards,

Culver Adams

PS: In my GMC Trucks Maintenance Manual X-6023, on page 575, Figure 2 shows "Typical Steering Gear Construction". My copy is smugged. Your similar manual for your truck likely shows (more clearly) a worm bearing thrust screw, or something related to that, accompanied by some text, that might be helpful as you motivate the front wheels to head in the direction you want to go.

[Hantke]

Originally Posted by Culver Adams

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Hello Hantke,



I've seen a couple of GMC/Chevrolet steering boxes but I don't know that much about them. I've not heard of GMC/Chevrolet designing and building one with open-air-flow cooled ball bearings. If you are sure you have one so designed and built, remove it from your truck as it is too rare to be driven upon the roadways. If you are not sure that is what you have, follow GMCDAC's advice posted at 07:18 PM today.



Please don't let the lady behind the windshield in your earlier posted photo (and others) ride in this otherwise good looking vehicle until it becomes safe.



Regards,



Culver Adams



PS: In my GMC Trucks Maintenance Manual X-6023, on page 575, Figure 2 shows "Typical Steering Gear Construction". My copy is smugged. Your similar manual for your truck likely shows (more clearly) a worm bearing thrust screw, or something related to that, accompanied by some text, that might be helpful as you motivate the front wheels to head in the direction you want to go.

Thanks, i honestly wasn't sure how it was meant to be, especially since there have been some oddities working on this truck already. It doesn't appear to have any mounting abilities for a cover or anything of the sort on the bottom, which is why I asked. I'll make sure to find a more appropriate working steering box or replace it and opt for power steering, which seems to be a cheap upgrade anyways, sooner rather than later.


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[GMCDAC]

If you would clean and de-grease the box back down to the iron, it should be evident that some type of welch plug or threaded plug probably what Culver Adams was referring to once resided in that hole. More pics from other angles will help everyone walk you through replacing it. All that greasy stuff on the outside used to be on the inside until that cap or plug left the scene.

DAC

[Hantke]

I'm out of town unfortunately so I'll have to wait till Monday to do any work on it, I tried wire brushing it and that's as far as I got, it also got a good bath in brake clean (maybe that will loosen it up before I get home). I'll work her down the rest of the way over the week, but it's midterms this last week and next week so ill be pretty well swamped.


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[Hantke]

Okay, well, on to the next problem! My starter this morning was spinning pretty quick, then for some reason it decided not to engage and was spinning freely, so I turned everything off and it kept going for another 5-10 seconds as it was slowing down. I went to turn it back on and try it again, but the starter wouldn't spin, so I popped in my car and headed to school, I'm hoping to diagnose it tomorrow, but any input would be appreciated.

Thanks! Sorry for the lack of updates, finals are around the corner and I've been paying off debt / working a lot so I really haven't done anything. Looking forward to some body work and welding this summer though!


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[Jeannie]

Hantke,

That sounds like the solenoid. It is an easy remove and replace. Replacement part should be any 1970s Chevrolet 60-65 series trucks with the 366 or 427 engine. NAPA versions often carry lifetime warranties. For the full starter NAPA part number is 46-4078. The starter for the V6 is part number 246-4078, however it is usually more expensive.

-Jeannie



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