Recent Posts

11

Site Suggestions / Re: Option to “thumbs up” a post

« Last post by Captkaos on May 18, 2026, 10:47:54 am »

Right now I am fighting the automated bots trying to hammer the forum.  I haven't see the simplemachines mod for a thumbs up, but I need to update the forum software first, after finding a bot solution.

12

Engine/Drivetrain / Re: Noise from crankshaft pulley?

« Last post by Rough75C20 on May 17, 2026, 03:17:17 pm »

Thank you bd. I’m sure I’ll have some more questions once I start putting everything back together.

Thank you


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13

Engine/Drivetrain / Re: Noise from crankshaft pulley?

« Last post by bd on May 17, 2026, 02:00:28 pm »

...I’m looking at an ac delco 252595. Is there a way to confirm this is the correct part number for the one on my truck?

That is the ACDelco p/n that comes up for a 1982 C20 w/305.

14

Engine/Drivetrain / Re: Noise from crankshaft pulley?

« Last post by Rough75C20 on May 17, 2026, 01:07:34 pm »

Thanks for the info bd. I’ve also heard there are multiple water pump part numbers for these engines. I’m looking at an ac delco 252595. Is there a way to confirm this is the correct part number for the one on my truck?

Thank you


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15

Engine/Drivetrain / Re: Noise from crankshaft pulley?

« Last post by bd on May 17, 2026, 12:44:20 pm »

The original GM part number for your balancer is 458653.  Try to determine if there is a part number interchange list to ensure compatibility.  Otherwise, the ADP number you're eyeballing appears correct. 

FYI, bear in mind that the outer ring of the old balancer is no longer indexed to the hub and may have rotated in addition to slipping rearward.  So, don't rely on timing mark comparisons between the old and new balancers during the selection process.

While you have it apart, it looks like the water pump is seeping coolant out of the weep hole.  You should consider replacing it, too.

16

Engine/Drivetrain / Re: Noise from crankshaft pulley?

« Last post by Rough75C20 on May 17, 2026, 10:38:56 am »

Hello all,

Trying to make sure I get the correct balancer. What is the important factor here? The overall dimensions are 6.75 inch diameter, 1.25 inch diameter center hole. The timing mark is between the 10 o clock and 11 o’clock position relative to the keyhole when looking from the front. It has a hollow back as well.
See pictures. Want to make sure I order the correct one there seem to be many options available. I’m looking at this one on rockauto part atp 102069.

Thank you


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17

General Discussion / Re: Happy Spring Everyone...

« Last post by VileZambonie on May 17, 2026, 07:54:35 am »

Someone decided to put them on there definitely not something that was ever offered on these trucks. For 80 you either had the sport mirrors or the 9x6.5 BE mirrors. The sport mirrors look good but honestly they suck for any practical use.

18

General Discussion / Re: Happy Spring Everyone...

« Last post by JohnnyPopper on May 16, 2026, 06:47:38 pm »

Well, I just went into the garage where this beast resides, and lo and behold! There are among the patina and greeny paste, 2 holes that have been filled.

They fit the description and location of the two lower pics VZ posted.

VZ, I repent in sackcloth and ashes. You are the man! 

Still curious about how these mirror options were offered and delivered to the buying public.

I better be quick, the generation is moving on...

19

General Discussion / Re: Happy Spring Everyone...

« Last post by JohnnyPopper on May 16, 2026, 01:58:34 pm »

One of those pics (bottom left) is from San Diego, when you could still DRIVE on the beach! Stinkin doo-gooders...well, having said that, there IS one beach left where you can. Fiesta Island. You should see the looks of the above referenced ilk when they see you driving...Shock, disgust, and in your face! till you say calmly, 'hey, it's legal to drive on the beach here'...

I'm not well versed on 'all things correct', so assume these are factory rounds. There is no other bolt pattern on the door.

In fact, when trying to remove, one of the factory threaded plugs started turning in the door skin. Good thing I had planned to restored the door soft parts and had access to tighten.

20

General Discussion / Re: Happy Spring Everyone...

« Last post by VileZambonie on May 15, 2026, 05:40:29 pm »

Thought so. "Raised Detail", you hear that bd? Glad to know they're making them both ways now.

It's amazing how interchangeable these trucks are

Here's the 'correct' side mirror on a '80.

Didn't know they ditched the dumbo mirrors that year...

The term "dumbo mirrors" is misused and confused time and time again. They called the 3 legged "dumbo" mirrors Below Eyeline Mirrors. In 1980 the regular "Truck" Mirrors were introduced and also called Below Eyeline mirrors but have the mount hidden under the cover. In 1981 they were also available in white, not just stainless.  PS those round mirrors I assume you are joking. The attached shows the 79 mirror options.